'I Will Be Your God' in the Bible

but this thing I commanded them, saying, 'Listen to my voice, and I will be your God, and you shall be my people; and walk in all the way that I command you, that it may be well with you.'

which I commanded your fathers in the day that I brought them forth out of the land of Egypt, out of the iron furnace, saying, "Obey my voice, and do them, according to all which I command you: so you shall be my people, and I will be your God;

You shall be my people, and I will be your God.