4 Righteously also the apostles, being of the race of Abraham, left the ship and their father, and followed the Word. Righteously also do we, possessing the same faith as Abraham, and taking up the cross as Isaac did the wood, follow Him. For in Abraham man had learned beforehand, and had been accustomed to follow the Word of God. For Abraham, according to his faith, followed the command of the Word of God, and with a ready mind delivered up, as a sacrifice to God, his only-begotten and beloved son, in order that God also might be pleased to offer up for all his seed His own beloved and only-begotten Son, as a sacrifice for our redemption.
Source: Adversus haereses (New Advent)