Matthew 6:34

Be not therefore sollicitous about the morrow; for the morrow will require thought for its own affairs: sufficient to each day is its own trouble.

Romans 12:11-12

not slothful in business: fervent in spirit: serving the Lord.

Philippians 4:4-5

Rejoice in the Lord always, and 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: fervent in spirit: serving the Lord.
Philippians 4:4
Rejoice in the Lord always, and again I say, Rejoice.

Who

Matthew 6:34
Be not therefore sollicitous about the morrow; for the morrow will require thought for its own affairs: sufficient to each day is its own trouble.