1 Thessalonians 1:3; 1 Thessalonians 2:9; 1 Thessalonians 3:5

3 Remembering without ceasing your work of faith, and labour of love, and patience of hope in our Lord Jesus Christ, in the sight of God and our Father;
9 For ye remember , brethren, our labour and travail: for labouring night and day, because we would not be chargeable unto any of you, we preached unto you the gospel of God.
5 For this cause, when I could no longer forbear , I sent to know your faith, lest by some means the tempter have tempted you, and our labour be in vain.