A “seed” for the blessing of all mankind would come through the family of Abraham

Dutch = Nederlandstalige versie > Een “zaad” voor de zegening van de gehele mensheid gekomen door de familie van Abraham

I will multiply your seed like the stars of the heavens and I will give to your seed all these lands; and by means of your seed all nations of the earth will certainly bless themselves. —
Genesis 26:4.

Abraham’s endurance had a powerful effect on his son Isaac, who spent his entire life —180 years— as an alien resident in the land of Canaan. Isaac’s endurance was based on faith in God’s promise, faith that was instilled in him by his aged parents and later reinforced by Jehovah’s own word to him. (Genesis 26:2-5) Isaac’s steadfastness played a key role in the fulfillment of Jehovah’s promise that a “seed” for the blessing of all mankind would come through the family of Abraham. Hundreds of years later, Jesus Christ, the primary part of that “seed,” opened the way for all who exercise faith in him to be reconciled to God and to enjoy everlasting life. (Galatians 3:16; John 3:16) Isaac, in turn, helped his son Jacob to cultivate strong faith that sustained him into his old age.