'Labour' in the Bible

For you remember, brethren, our labour and toil: how, working night and day so as not to become a burden to any one of you, we came and proclaimed among you God's Good News.

For this reason I also, when I could no longer endure the uncertainty, sent to know the condition of your faith, lest perchance the Tempter might have tempted you and our labour have been lost.

Now we beg you, brethren, to show respect for those who labour among you and are your leaders in Christian work, and are your advisers;