'Labour' in the Bible

Now he that planteth and he that watereth are one: and every man shall receive his own reward according to his own labour.

And labour, working with our own hands: being reviled, we bless; being persecuted, we suffer it:

Do ye not know that they who labour at sacred things eat of the offerings offered in the temple; they that attend at the altar partake with the altar?

and by the grace of God I am what I am, and His grace that is towards me came not in vain, but more abundantly than they all did I labour, yet not I, but the grace of God that is with me;

Therefore, my beloved brethren, be ye stedfast, unmoveable, always abounding in the work of the Lord, forasmuch as ye know that your labour is not in vain in the Lord.