because
Gênesis 17:18
And Abraham said unto God, O that Ishmael might live before you!
Gênesis 22:1
And it came to pass after these things, that God did test Abraham, and said unto him, Abraham: and he said, Behold, here am I.
Gênesis 22:2
And he said, Take now your son, your only son Isaac, whom you love, and get you into the land of Moriah; and offer him there for a burnt offering upon one of the mountains which I will tell you of.
2 Samuel 18:33
And the king was much moved, and went up to the chamber over the gate, and wept: and as he went, thus he said, O my son Absalom, my son, my son Absalom! would God I had died for you, O Absalom, my son, my son!
Mateus 10:37
He that loves father or mother more than me is not worthy of me: and he that loves son or daughter more than me is not worthy of me.
Hebreus 12:11
Now no chastening for the present seems to be joyous, but grievous: nevertheless afterward it yields the peaceable fruit of righteousness unto them who are trained by it.