These are 6 important facts about the Gospel and the Good News we believe in. By Johan Piper.
15 Now I would remind you, brothers,[a] 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.
1 Corinthians 15:1-2 English Standard Version (ESV)