I Thessalonians 2:7-12 NKJV
But we were gentle among you, just as a nursing mother cherishes her own children. So, affectionately longing for you, we were well pleased to impart to you not only the gospel of God, but also our own lives, because you had become dear to us. For you remember, brethren, our labor and toil; for laboring night and day, that we might not be a burden to any of you, we preached to you the gospel of God.
You are witnesses, and God also, how devoutly and justly and blamelessly we behaved ourselves among you who believe; as you know how we exhorted, and comforted, and charged every one of you, as a father does his own children, that you would walk worthy of God who calls you into His own kingdom and glory.
NKJV: New King James Version