New King James Version (NKJV)
[ The Outworking of Love ] By this we know love, because He laid down His life for us. And we also ought to lay down our lives for the brethren.

New International Version (NIV)
This is how we know what love is: Jesus Christ laid down his life for us. And we ought to lay down our lives for our brothers and sisters.

English Standard Version (ESV)
By this we know love, that he laid down his life for us, and we ought to lay down our lives for the brothers.

King James Version (KJV)
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.