Whose father was prepared to sacrifice him on an atar?

Answer 1

It was Abraham. He was asked in a test of faith by God to take one of his sons onto Mount Moriah and sacrifice him as a burnt offering. At the time, children were often sacrificed as burnt offerings to a variety of deities. Abraham submitted, despite the fact that he "loved" his son. He took the son up on the mountain and prepared to sacrifice him. At the last moment, God told him to stay his hand and a ram appeared in the bushes. Abraham and his son slayed the ram as an offering, instead. God reiterated His promises to Abraham again, at this point, and made the covenant binding. Because Abraham had faith in the One God, God showed Himself different from other gods who desired human sacrifice and started His history with a people: the Jews or the Muslims. Christianity also lays claim to this story as the fore-shadowing of the sacrifice of Jesus Christ.