Gálatas 3:16

Assim sendo, as promessas foram feitas por Deus a Abraão e ao seu filho. Não se diz “filhos”, no plural, e sim, no singular “e ao seu filho”, significando Cristo.

Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.