If you feel like giving up, then meditate on Paul’s words to Timothy 2 Timothy 2:11-13:
The saying is trustworthy, for:
If we have died with him, we will also live with him;
if we endure, we will also reign with him;
if we deny him, he also will deny us;
if we are faithless, he remains faithful— for he cannot deny himself. (2 Timothy 2:11-13)
Lock paraphrases the passage:
Who shares Christ’s death His life shall share:
They reign with Him their cross who bear:
Who Him deny He will deny:
Though all our faith fall, He cannot lie.
W. Lock quoted by Mounce.