Exodus 7:6-16 NIV

6 Moses and Aaron did just as the LORD commanded1 them.

References for Exodus 7:6

      7 Moses was eighty years old2 and Aaron eighty-three when they spoke to Pharaoh.

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      Aaron's Staff Becomes a Snake

      8 The LORD said to Moses and Aaron,

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          9 "When Pharaoh says to you, 'Perform a miracle,3' then say to Aaron, 'Take your staff and throw it down before Pharaoh,' and it will become a snake."4

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          10 So Moses and Aaron went to Pharaoh and did just as the LORD commanded. Aaron threw his staff down in front of Pharaoh and his officials, and it became a snake.
          11 Pharaoh then summoned wise men and sorcerers,5 and the Egyptian magicians6 also did the same things by their secret arts:7

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          12 Each one threw down his staff and it became a snake. But Aaron's staff swallowed up their staffs.
          13 Yet Pharaoh's heart8 became hard and he would not listen9 to them, just as the LORD had said.

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              The Plague of Blood

              14 Then the LORD said to Moses, "Pharaoh's heart is unyielding;10 he refuses to let the people go.

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              15 Go to Pharaoh in the morning as he goes out to the water.11 Wait on the bank of the Nile12 to meet him, and take in your hand the staff that was changed into a snake.

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              16 Then say to him, 'The LORD, the God of the Hebrews, has sent me to say to you: Let my people go, so that they may worship13 me in the desert. But until now you have not listened.14

              References for Exodus 7:16