Luke 9:62
But Jesus answered: "No one who looks back, after putting his hand to the plough, is fitted for the Kingdom of God."
Acts 15:37-38
Barnabas wished to take with them John, whose other name was Mark;
Philippians 3:13
For I, Brothers, do not regard myself as having yet laid hold of it. But this one thing I do--forgetting what lies behind, and straining every nerve for that which lies in front,
Hebrews 10:38
And through faith the Righteous man shall find his Life, But, if a man draws back, my heart can find no pleasure in him.'
Luke 17:31-32
On that day, if a man is on his house-top and his goods in the house, he must not go down to get them; nor again must one who is on the farm turn back.
2 Timothy 4:10
for Demas, in his love for the world, has deserted me. He has gone to Thessalonica, Crescens to Galatia, and Titus to Dalmatia.
James 1:6-8
But let him ask with confidence, never doubting; for the man who doubts is like a wave of the sea driven hither and thither at the mercy of the wind--
2 Peter 2:20-22
If, after having escaped the polluting influences of the world, through knowing our Lord and Savior, Jesus Christ, men are again entangled in them, and give way to them, their last state has become worse than their first.