Galatians 3:16

“Now to Abraham and his seed were the promises made, etc..] The promises design the promises of the covenant of grace mentioned in the next verse, which are exceeding great and precious, better than those of any other covenant; and which are all yea and amen in Christ, and are chiefly of a spiritual nature; though all the temporal blessings of God's people come to them in a covenant way, and by virtue of the promise; for godliness has the promise of this life, that God will verily feed them, withhold no good thing from them proper for them, sanctify all their afflictions, support under them, and never leave nor forsake them: but the promises here intended principally are such as these, that…”

“This verse is parenthetical. The covenant of promise was not "spoken" (so Greek for "made") to Abraham alone, but "to Abraham and his seed"; to the latter especially; and this means Christ (and that which is inseparable from Him, the literal Israel, and the spiritual, His body, the Church). Christ not having come when the law was given, the covenant could not have been then fulfilled, but awaited the coming of Him, the Seed, to whom it was spoken. promises--plural, because the same promise was often repeated (Gen 12:3, Gen 12:7; Gen 15:5, Gen 15:18; Gen 17:7; Gen 22:18), and because it involved many things; earthly blessings to the literal children of Abraham in Canaan, and spiritual and…”

“Now to Abraham and his seed - To him and his posterity. Were the promises made - The promise here referred to was that which is recorded in Genesis 22:17-18. “In blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of heaven, and as the sand which is upon the sea-shore; and in thy seed shall all the nations of the earth be blessed.” He saith not, And to seeds, as of many, but as of one ... - He does not use the plural term, as if the promise extended to many persons, but he speaks in the singular number, as if only one was intended; and that one must be the Messiah. Such is Paul’s interpretation; such is evidently the sentiment which he intends to convey, and…”

“Now the promises were made to Abraham and his seed - Several promises were made to Abraham; but the chief of all, and which was several times repeated, was that of the blessing through Christ. He - That is, God. Saith not, And to seeds, as of many - As if the promise were made to several kinds of seed. But as of one - That is, one kind of seed, one posterity, one kind of sons. And to all these the blessing belonged by promise. Which is Christ - including all that believe in him. Gen 22:18. Galatians 3:17”

“3:16 The promises to Abraham were primarily inherited by Abraham and his child (literally his seed)—the promised Messiah, the ultimate descendant of Abraham. “Seed” can refer to a single descendant or to many descendants (see Gen 12:7; 13:15). Although the promise has a plural sense (see Gal 3:29; Gen 13:15-16; 15:5-6; 17:7-8), this singular noun points to the one descendant, Christ, who completely fulfilled the promise. The heirs of the promise are not Jacob’s physical children, but the spiritual children of Christ by the Spirit through faith.”

“to: Gal 3:8; Gen 12:3, Gen 12:7, Gen 13:15, Gen 13:16, Gen 15:5, Gen 17:7, Gen 17:8, Gen 21:12, Gen 22:17, Gen 22:18, Gen 26:3, Gen 26:4, Gen 28:13; Gen 28:14, Gen 49:10 which: Gal 3:27-29; Rom 12:5; Co1 12:12, Co1 12:27; Eph 4:15, Eph 4:16, Eph 5:29, Eph 5:30, Eph 5:32; Col 2:19; Col 3:11 Galatians 3:17”