And the LORD said to Moses, "See, I make you as God to Pharaoh; and Aaron your brother shall be your prophet.
You shall speak all that I command you; and Aaron your brother shall tell Pharaoh to let the people of Israel go out of his land.
But I will harden Pharaoh's heart, and though I multiply my signs and wonders in the land of Egypt,
Pharaoh will not listen to you; then I will lay my hand upon Egypt and bring forth my hosts, my people the sons of Israel, out of the land of Egypt by great acts of judgment.
And the Egyptians shall know that I am the LORD, when I stretch forth my hand upon Egypt and bring out the people of Israel from among them."
And Moses and Aaron did so; they did as the LORD commanded them.
Now Moses was eighty years old, and Aaron eighty-three years old, when they spoke to Pharaoh.
And the LORD said to Moses and Aaron,
"When Pharaoh says to you, 'Prove yourselves by working a miracle,' then you shall say to Aaron, 'Take your rod and cast it down before Pharaoh, that it may become a serpent.'"
So Moses and Aaron went to Pharaoh and did as the LORD commanded; Aaron cast down his rod before Pharaoh and his servants, and it became a serpent.
Then Pharaoh summoned the wise men and the sorcerers; and they also, the magicians of Egypt, did the same by their secret arts.
For every man cast down his rod, and they became serpents. But Aaron's rod swallowed up their rods.
Still Pharaoh's heart was hardened, and he would not listen to them; as the LORD had said.
Then the LORD said to Moses, "Pharaoh's heart is hardened, he refuses to let the people go.
Go to Pharaoh in the morning, as he is going out to the water; wait for him by the river's brink, and take in your hand the rod which was turned into a serpent.
And you shall say to him, 'The LORD, the God of the Hebrews, sent me to you, saying, "Let my people go, that they may serve me in the wilderness; and behold, you have not yet obeyed."
Thus says the LORD, "By this you shall know that I am the LORD: behold, I will strike the water that is in the Nile with the rod that is in my hand, and it shall be turned to blood,
and the fish in the Nile shall die, and the Nile shall become foul, and the Egyptians will loathe to drink water from the Nile."'"
And the LORD said to Moses, "Say to Aaron, 'Take your rod and stretch out your hand over the waters of Egypt, over their rivers, their canals, and their ponds, and all their pools of water, that they may become blood; and there shall be blood throughout all the land of Egypt, both in vessels of wood and in vessels of stone.'"
Moses and Aaron did as the LORD commanded; in the sight of Pharaoh and in the sight of his servants, he lifted up the rod and struck the water that was in the Nile, and all the water that was in the Nile turned to blood.
And the fish in the Nile died; and the Nile became foul, so that the Egyptians could not drink water from the Nile; and there was blood throughout all the land of Egypt.
But the magicians of Egypt did the same by their secret arts; so Pharaoh's heart remained hardened, and he would not listen to them; as the LORD had said.
Pharaoh turned and went into his house, and he did not lay even this to heart.
And all the Egyptians dug round about the Nile for water to drink, for they could not drink the water of the Nile.
Seven days passed after the LORD had struck the Nile.
Then the LORD said to Moses, "Go in to Pharaoh and say to him, 'Thus says the LORD, "Let my people go, that they may serve me.
But if you refuse to let them go, behold, I will plague all your country with frogs;
the Nile shall swarm with frogs which shall come up into your house, and into your bedchamber and on your bed, and into the houses of your servants and of your people, and into your ovens and your kneading bowls;
the frogs shall come up on you and on your people and on all your servants."'"
And the LORD said to Moses, "Say to Aaron, 'Stretch out your hand with your rod over the rivers, over the canals, and over the pools, and cause frogs to come upon the land of Egypt!'"
So Aaron stretched out his hand over the waters of Egypt; and the frogs came up and covered the land of Egypt.
But the magicians did the same by their secret arts, and brought frogs upon the land of Egypt.
Then Pharaoh called Moses and Aaron, and said, "Entreat the LORD to take away the frogs from me and from my people; and I will let the people go to sacrifice to the LORD."
Moses said to Pharaoh, "Be pleased to command me when I am to entreat, for you and for your servants and for your people, that the frogs be destroyed from you and your houses and be left only in the Nile."
And he said, "Tomorrow." Moses said, "Be it as you say, that you may know that there is no one like the LORD our God.
The frogs shall depart from you and your houses and your servants and your people; they shall be left only in the Nile."
So Moses and Aaron went out from Pharaoh; and Moses cried to the LORD concerning the frogs, as he had agreed with Pharaoh.
And the LORD did according to the word of Moses; the frogs died out of the houses and courtyards and out of the fields.
And they gathered them together in heaps, and the land stank.
But when Pharaoh saw that there was a respite, he hardened his heart, and would not listen to them; as the LORD had said.
Then the LORD said to Moses, "Say to Aaron, 'Stretch out your rod and strike the dust of the earth, that it may become gnats throughout all the land of Egypt.'"
And they did so; Aaron stretched out his hand with his rod, and struck the dust of the earth, and there came gnats on man and beast; all the dust of the earth became gnats throughout all the land of Egypt.
The magicians tried by their secret arts to bring forth gnats, but they could not. So there were gnats on man and beast.
And the magicians said to Pharaoh, "This is the finger of God." But Pharaoh's heart was hardened, and he would not listen to them; as the LORD had said.
Then the LORD said to Moses, "Rise up early in the morning and wait for Pharaoh, as he goes out to the water, and say to him, 'Thus says the LORD, "Let my people go, that they may serve me.
Else, if you will not let my people go, behold, I will send swarms of flies on you and your servants and your people, and into your houses; and the houses of the Egyptians shall be filled with swarms of flies, and also the ground on which they stand.
But on that day I will set apart the land of Goshen, where my people dwell, so that no swarms of flies shall be there; that you may know that I am the LORD in the midst of the earth.
Thus I will put a division between my people and your people. By tomorrow shall this sign be."'"
And the LORD did so; there came great swarms of flies into the house of Pharaoh and into his servants' houses, and in all the land of Egypt the land was ruined by reason of the flies.
Then Pharaoh called Moses and Aaron, and said, "Go, sacrifice to your God within the land."
But Moses said, "It would not be right to do so; for we shall sacrifice to the LORD our God offerings abominable to the Egyptians. If we sacrifice offerings abominable to the Egyptians before their eyes, will they not stone us?
We must go three days' journey into the wilderness and sacrifice to the LORD our God as he will command us."
So Pharaoh said, "I will let you go, to sacrifice to the LORD your God in the wilderness; only you shall not go very far away. Make entreaty for me."
Then Moses said, "Behold, I am going out from you and I will pray to the LORD that the swarms of flies may depart from Pharaoh, from his servants, and from his people, tomorrow; only let not Pharaoh deal falsely again by not letting the people go to sacrifice to the LORD."
So Moses went out from Pharaoh and prayed to the LORD.
And the LORD did as Moses asked, and removed the swarms of flies from Pharaoh, from his servants, and from his people; not one remained.
But Pharaoh hardened his heart this time also, and did not let the people go.
Then Pharisees and scribes came to Jesus from Jerusalem and said,
"Why do your disciples transgress the tradition of the elders? For they do not wash their hands when they eat."
He answered them, "And why do you transgress the commandment of God for the sake of your tradition?
For God commanded, 'Honor your father and your mother,' and, 'He who speaks evil of father or mother, let him surely die.'
But you say, 'If any one tells his father or his mother, What you would have gained from me is given to God, he need not honor his father.'
So, for the sake of your tradition, you have made void the word of God.
You hypocrites! Well did Isaiah prophesy of you, when he said:
'This people honors me with their lips, but their heart is far from me;
in vain do they worship me, teaching as doctrines the precepts of men.'"
And he called the people to him and said to them, "Hear and understand:
not what goes into the mouth defiles a man, but what comes out of the mouth, this defiles a man."
Then the disciples came and said to him, "Do you know that the Pharisees were offended when they heard this saying?"
He answered, "Every plant which my heavenly Father has not planted will be rooted up.
Let them alone; they are blind guides. And if a blind man leads a blind man, both will fall into a pit."
But Peter said to him, "Explain the parable to us."
And he said, "Are you also still without understanding?
Do you not see that whatever goes into the mouth passes into the stomach, and so passes on?
But what comes out of the mouth proceeds from the heart, and this defiles a man.
For out of the heart come evil thoughts, murder, adultery, fornication, theft, false witness, slander.
These are what defile a man; but to eat with unwashed hands does not defile a man."
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved. (Revised Standard Version - Holy Bible)