Matthew 6:34

Take not therefore thought for the morrow: for the morrow shall take thought for itself: sufficient for the day is the evil thereof.

Romans 12:11-12

Not slothful in business, servent in spirit, serving the Lord:

Philippians 4:4-5

Rejoice in the Lord always: again, I say, rejoice.

Treasury of Scripture Knowledge

Summary

Wherefore I perceive that there is nothing better, than that a man should rejoice in his own works; for that is his portion: for who shall bring him to see what shall be after him?

Bible References

Nothing

Romans 12:11
Not slothful in business, servent in spirit, serving the Lord:
Philippians 4:4
Rejoice in the Lord always: again, I say, rejoice.

Who

Matthew 6:34
Take not therefore thought for the morrow: for the morrow shall take thought for itself: sufficient for the day is the evil thereof.