He was loving and obedient. Abraham carefully explained to Isaac the important meaning of the daily morning and evening sacrifices of the lambs. Isaac learned all about the wonderful promise that Jesus would come to save us from Satan, and he chose to love, trust, and obey God, just like his father Abraham.
It is a promise followed up in the Qur'an, where Ishmael comes to Mecca as a founding father of Islam (see Biblical events in Mecca). The other central theme in the Abraham story is God's test of his obedience. He instructs Abraham to sacrifice to him, as a burnt offering, his beloved son Isaac.