1 John 3:14-16

We know that we have passed out of death into Life, because we love the brothers and sisters. He who does not love remains in [spiritual] death. Everyone who hates (works against) his brother [in Christ] is [at heart] a murderer [by God’s standards]; and you know that no murderer has eternal life abiding in him. [Matt 5:21-23] By this we know [and have come to understand the depth and essence of His precious] love: that He [willingly] laid down His life for us [because He loved us]. And we ought to lay down our lives for the believers.