John 13:35

King James Version - American Edition

By this shall all men know that ye are my disciples, if ye have love one to another.

Cross References

John 17:21

that they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me.

1 John 2:10

He that loveth his brother abideth in the light, and there is none occasion of stumbling in him.

1 John 2:5

But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.

2 John 1:5

And now I beseech thee, lady, not as though I wrote a new commandment unto thee, but that which we had from the beginning, that we love one another.