by which also you are saved, if you hold fast that word which I preached to you-- unless you believed in vain.
1 Corinthians 15:2
Surrounding context
15:1 Moreover, brethren, I declare to you the gospel which I preached to you, which also you received and in which you stand,
15:2 by which also you are saved, if you hold fast that word which I preached to you-- unless you believed in vain.
15:3 For I delivered to you first of all that which I also received: that Christ died for our sins according to the Scriptures,