NET
20 For every one of God’s promises are “Yes” in him; therefore also through him the “Amen” is spoken, to the glory we give to God.
Darby
20 For whatever promises of God [there are], in him is the yea, and in him the amen, for glory to God by us.
KJV
20 For all the promises of God in him [are] yea, and in him Amen, unto the glory of God by us.