Genesis 24:1

And Abraham was old, and well stricken in age: and the LORD had blessed Abraham in all things.

And Abraham was old and well stricken, ... His anxiety to see his son married was natural to his position as a pastoral chief interested in preserving the honour of his tribe, and still more as a patriarch who had regard to the divine promise of a numerous posterity.

And the Lord had blessed Abraham in all things. The promised blessing having been amply realized in the vast increase of his worldly prosperity, Abraham was desirous of providing in the most proper way for transmitting it to a line of descendants faithful to the service of the true God.