Luke 9:62
But Jesus answered him, "No man who puts his hand to the plow and then looks back, is fit for the kingdom of God."
Acts 15:37-38
Now Barnabas wanted to take with them John, who was called Mark.
Philippians 3:13
Brothers, I do not regard myself to have yet laid hold of it; but this one thing I do, forgetting what is behind me, but straining every nerve toward that which lies ahead,
Hebrews 10:38
But it is by faith that my Righteous One will live, And if he draws back, my soul takes no pleasure in him.
Luke 17:31-32
"On that day, if a man is on the housetop and his goods inside, let him not go down to take them away; nor should a man in the field turn back.
2 Timothy 4:10
for Demas has deserted me for love of this present world, and is gone to Thessalonica; Crescens is gone to Galatia; Titus to Dalmatia.
James 1:6-8
But let him ask in faith, without wavering; for he who wavers is like a surge of the sea, wind-driven and tossed.
2 Peter 2:20-22
For if, after having escaped the pollutions of the world, through the knowledge of our Lord and Saviour Jesus Christ, men are again entangled in them and overpowered, their last state is become worse than their first.