Exodus 3:15

15 And God said again to Moses, Thus shalt thou say to the sons of Israel, The Lord God of our fathers, the God of Abraam, and God of Isaac, and God of Jacob, has sent me to you: this is my name for ever, and my memorial to generations of generations.

Exodus 3:15 Meaning and Commentary

Exodus 3:15

And God said moreover unto Moses
As a further explanation of the above name, and of the design and use of it: thus shalt thou say unto the children of Israel:
for their further instruction in the said name, and for the confirmation of the mission of Moses, and the success of it: the Lord God of your fathers, the God of Abraham, the God of Isaac, and
the God of Jacob, hath sent me unto you;
he who is Jehovah, and the covenant God of the ancestors of the people of Israel, and of them, so he is called, ( Ecclesiastes 3:6 ) this [is] my name for ever:
meaning either "Ehjeh, I am", in the preceding verse, or, which is the same, Jehovah in this, and so both of them, and including also the name of the God of Abraham which he was always to be known by: and this is my memorial unto all generations;
the name by which he should be made mention of both by himself and others, and by which he would be called to remembrance by his people, and what he had promised unto them, and done for them.

Exodus 3:15 In-Context

13 And Moses said to God, Behold, I shall go forth to the children of Israel, and shall say to them, The God of our fathers has sent me to you; and they will ask me, What is his name? What shall I say to them?
14 And God spoke to Moses, saying, I am THE BEING; and he said, Thus shall ye say to the children of Israel, THE BEING has sent me to you.
15 And God said again to Moses, Thus shalt thou say to the sons of Israel, The Lord God of our fathers, the God of Abraam, and God of Isaac, and God of Jacob, has sent me to you: this is my name for ever, and my memorial to generations of generations.
16 Go then and gather the elders of the children of Israel, and thou shalt say to them, The Lord God of our fathers has appeared to me, the God of Abraam, and God of Isaac, and God of Jacob, saying, I have surely looked upon you, and upon all the things which have happened to you in Egypt.
17 And he said, I will bring you up out of the affliction of the Egyptians to the land of the Chananites and the Chettites, and Amorites and Pherezites, and Gergesites, and Evites, and Jebusites, to a land flowing with milk and honey.

The Brenton translation of the Septuagint is in the public domain.