Here’s a short but helpful explanation by Ben Witherington on the significance of Christ’s resurrection from 1 Corinthians 15.
“God’s ‘Yes’ to life is louder than death’s ‘No.” – Ben Witherington
“17 And if Christ has not been raised, your faith is worthless; you are still in your sins. 18 Therefore, those who have fallen asleep in Christ have also perished. 19 If we have put our hope in Christ for this life only, we should be pitied more than anyone” (1 Corinthians 15:17-19)