New Defender's Study Bible Notes
7:9 the patriarchs, moved with envy. In documenting the long-continued rebellion of the Israelite leaders against God’s plan, Stephen thus notes that this began with the very first generation of the children of Israel.
7:14 threescore and fifteen souls. In Genesis 46:27, we are told that “all the souls of the house of Jacob, which came into Egypt, were threescore and ten.” A number of ways have been suggested for correlating these two numbers. Probably the most natural solution is to assume that the seventy-five included several wives of Jacob’s sons who were not actually “of the house of Jacob” but who did come into Egypt and were recognized as his kindred.