Now we, brethren, as Isaac was, are the children of promise.
We. So A C Delta 'Aleph ('), Vulgate. But B G f g, 'ye.' "We" better accords with Galatians 4:26; Galatians 4:31.
Children of promise - not children after the flesh, but by virtue of promise (Galatians 3:18; Galatians 4:23; Galatians 4:29; Galatians 4:31). "We ... are" so, and ought to continue so.