When God tells Abraham to sacrifice his only beloved son Isaac, It is like taking Abraham’s life. But he obeys. This eventually grants Abraham countless generations, as many as the stars. His descendants are favoured to possess the land of their enemies. Obedience to God most certainly will cost you a lot, but the reward of such obedience is limitless. To worship God in truth we must sacrifice sinful pleasures. But no sacrifice made to God goes unnoticed. God will not be so unjust as to forget the sacrifices we make for the sake of his name (Heb 6:11).