Matthew 6:34

Be not anxious, therefore, for to-morrow, for to-morrow will be anxious for its; sufficient for the day is its evil.

Romans 12:11-12

be not slothful in business, be fervent in spirit, serve 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
be not slothful in business, be fervent in spirit, serve the Lord,
Philippians 4:4
Rejoice in the Lord always; again I say, rejoice.

Who

Matthew 6:34
Be not anxious, therefore, for to-morrow, for to-morrow will be anxious for its; sufficient for the day is its evil.