Holding fast to the biblical gospel requires a clear understanding of what the gospel is and a steadfast confidence in its ability to save you and sustain you.

1 Corinthians 15:1–4 (ESV) 1 Now I would remind you, brothers, of the gospel I preached to you, which you received, in which you stand, 2 and by which you are being saved, if you hold fast to the word I preached to you—unless you believed in vain. 3 For I delivered to you as of first importance what I also received: that Christ died for our sins in accordance with the Scriptures, 4 that he was buried, that he was raised on the third day in accordance with the Scriptures,