Matthew 20:6
And going out about five o'clock he found others loitering, and he asked them, "'Why have you been standing here all day long, doing nothing?'
John 6:27
Bestow your pains not on the food which perishes, but on the food that remains unto the Life of the Ages--that food which will be the Son of Man's gift to you; for on Him the Father, God, has set His seal."
Philippians 3:13-14
Brethren, I do not imagine that I have yet laid hold of it. But this one thing I do--forgetting everything which is past and stretching forward to what lies in front of me,
2 Peter 1:10-11
For this reason, brethren, be all the more in earnest to make sure that God has called you and chosen you; for it is certain that so long as you practise these things, you will never stumble.