458. This makes clear the origin and the nature of the conjunction of love to God and love towards the neighbor, as being the influx of God's love for men, the reception of which by man and his cooperation therewith being love towards the neighbor. In a word, conjunction is effected in accordance with this saying of the Lord:
At that day ye shall know that I am in My Father, and ye in Me, and I in you (John 14:20). Also according to this, He that hath My commandments and keepeth them, he it is that loveth Me, and I will love him, and will manifest Myself unto him; and We will make abode with him (John 14:21-23). All of the Lord's commandments have relation to love towards the neighbor, and in a word they are not doing evil to the neighbor, but doing good to him. That those who do this love God and God loves them, is in accordance with these words of the Lord. Because such is the conjunction of these two loves, John says:
He that keepeth the commandments of Jesus Christ abideth in Him and He in him. If a man say, I love God, but hateth his brother, he is a liar; for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen? And this commandment have we from Him, That he who loveth God should love his brother also (1 John 3:24; 4:20, 21).