Luke 9:62
Jesus said unto him, "No man that putteth his hand to the plough, and looketh back, is apt to the kingdom of God."
Psalm 78:8-9
And not to be as their forefathers, a faithless and stubborn generation, a generation that set not their heart aright, and whose spirit was not true toward God.
Acts 15:37-38
And Barnabas gave counsel, to take with them John called also Mark:
Philippians 3:13
Brethren, I count not myself that I have gotten it: but one thing I say: I forget that which is behind me, and stretch myself unto that which is before me;
Hebrews 10:38
But the just shall live by faith. And if he withdraw himself, my soul shall have no pleasure in him.
Luke 17:31-32
At that day, he that is on the housetop, and his stuff in the house: let him not come down to take it out. And likewise let not him that is in the fields, turn back again to that he left behind.
2 Timothy 4:10
For Demas hath left me, and hath loved this present world, and is departed into Thessalonica. Crescens is gone to Galatia, and Titus unto Dalmatia.
James 1:6-8
But let him ask in faith, and waver not. For he that doubteth is like the waves of the sea, tossed of the wind, and carried with violence.
2 Peter 2:20-22
For if they, after they have escaped from the filthiness of the world through the knowledge of the Lord, and of the saviour Jesus Christ, they are yet tangled again therein and overcome: then is the latter end worse with them than the beginning.