'God of Your Fathers' in the Bible

It is in the power of my hand to do you harm. But the God of your fathers spoke to me last night, saying, Take heed that you do not speak either good or bad to Jacob.

And he said, "Be of good cheer, fear not: Your God and the God of your fathers hath put you that treasure in your sacks, for I had your money." And he brought Simeon out to them,

And He said, I am God, the God of your fathers. Do not fear to go down into Egypt, for I will make of you a great nation.