6. How did Jehovah prove to be faithful to his purpose and to his name?

⁶ Faithful to his purpose and to the meaning of his name, Jehovah caused himself to become a Prophet and a Savior.a He told Satan: “I shall put enmity between you and the woman and between your seed and her seed. He will bruise you in the head and you will bruise him in the heel.” (Genesis 3:15) By means of the Seed of his “woman,” or the heavenly part of his organization, Jehovah would answer Satan’s challenge and provide Adam’s descendants with hope of deliverance and life.​—Romans 5:21; Galatians 4:26, 31.

 9. How did Jehovah progressively reveal the sacred secret of his will?

⁹ By means of a series of covenants, Jehovah gradually revealed how his purpose concerning the Seed promised in Eden would be fulfilled. His covenant promise to Abraham revealed that the promised Seed would come to earth in Abraham’s lineage and would be the means whereby “all nations of the earth” would bless themselves. That covenant also intimated that others would be associated with the primary part of the seed. (Genesis 22:17, 18) The Law covenant made with fleshly Israel disclosed Jehovah’s purpose to have “a kingdom of priests.” (Exodus 19:5, 6) The covenant with David showed that the Seed would be the Head of a Kingdom to time indefinite. (2 Samuel 7:12, 13; Psalm 89:3, 4) Once the Law covenant led the Jews to the Messiah, Jehovah revealed further aspects of the fulfillment of his purpose. (Galatians 3:19, 24) Those humans who were to be associated with the primary part of the seed would form the foretold “kingdom of priests” and would be brought into “a new covenant” as the new “Israel,” a spiritual one.​—Jeremiah 31:31-34; Hebrews 8:7-9.c

10, 11. (a) How did Jehovah reveal the foretold Seed? (b) Why did God’s only-begotten Son come to earth?

¹⁰ In line with the administration of the divine purpose, the time came for the foretold Seed to appear on earth. Jehovah sent the angel Gabriel to tell Mary that she would give birth to a son who was to be called Jesus. The angel said to her: “This one will be great and will be called Son of the Most High; and Jehovah God will give him the throne of David his father, and he will rule as king over the house of Jacob forever, and there will be no end of his kingdom.” (Luke 1:32, 33) The identity of the promised Seed thus became clear.​—Galatians 3:16; 4:4.