1 Corinthians 15:1-2

Amplified Bible, Classic Edition

15 And now let me remind you [since it seems to have escaped you], brethren, of the Gospel (the glad tidings of salvation) which I proclaimed to you, which you welcomed and accepted and upon which your faith rests,

² And by which you are saved, if you hold fast and keep firmly what I preached to you, unless you believed at first without effect and all for nothing.