Strong G3784 ὀφείλω opheilō opheileō · to owe

1 John

1. 1 John 2:6
   He that saith he abideth in him ought himself also so to walk, even as he walked.
2. 1 John 3:16
   Hereby perceive we the love of God, because he laid down his life for us: and we ought to lay down our lives for the brethren.
3. 1 John 4:11
   Beloved, if God so loved us, we ought also to love one another.