John 6:27

Stop toiling for the food that perishes, but toil for the food that lasts for eternal life, which the Son of Man will give you, for God the Father has given Him authority to do so."

Hebrews 6:11-12

And we desire each one of you to continue to show the same earnestness to the very end, that you may enjoy your hope to the fullest,

2 Peter 1:10-11

Therefore, brothers, be all the more in earnest to make certain to yourselves God's call and choice of you. For if you cultivate these qualities, you will never slip,

Treasury of Scripture Knowledge

Summary

And they said, Arise, that we may go up against them: for we have seen the land, and, behold, it is very good: and are ye still? be not slothful to go, and to enter to possess the land.

Bible References

Be not

John 6:27
Stop toiling for the food that perishes, but toil for the food that lasts for eternal life, which the Son of Man will give you, for God the Father has given Him authority to do so."
Hebrews 6:11
And we desire each one of you to continue to show the same earnestness to the very end, that you may enjoy your hope to the fullest,
2 Peter 1:10
Therefore, brothers, be all the more in earnest to make certain to yourselves God's call and choice of you. For if you cultivate these qualities, you will never slip,