To some degree, there really is no spiritual meaning to the word “love” in the Bible. Why? Because if you truly love another, that is already a spiritual state. To put it simply, the Lord is Love Itself, a perfect and infinite love that is the source of all actual life and substance in the universe. Thus everything we are and everything we experience is a product of the Lord's love; there is no way for us to have any love from ourselves that is not ultimately the Lord's love, because the Lord's love is everything. When we feel love, what we're really doing is opening ourselves to be a conduit for the Lord's love -- truly a spiritual state. This also means that the more we can align our love with the Lord's love, the stronger our experience of love will be. The Lord's love is a constant desire to be conjoined with us, to be able to love us fully while protecting our right to choose. So the more we try to love that way, the more in harmony with Him we will be and the more powerful our feelings of love will be. In a general sense, then, most uses of “love” in the Bible represent a desire for union, connection, powered, and enriched by the Lord.

In Matthew 6:24, this signifies celestial of love. (Arcana Coelestia 3875[3])

In Malachi 2:11, this signifies to conjoin oneself with falsity. (Arcana Coelestia 4434[3])

1728. 'And he was a priest' means the holiness of love. This is clear from the meaning of 'a priest' in the Word. Two special ways in which the Lord is characterized are as King and as Priest. A king or the office of king means holy truth, and a priest or the office of priest means holy good. The former is the Divine Spiritual, the latter the Divine Celestial. As King the Lord governs every single thing in the universe from Divine Truth; but as Priest He does so from Divine Good. Divine Truth is the order itself of His kingdom existing everywhere, all the laws of which are truths, or eternal verities. Divine Good is the very essential of order, every aspect of which is an expression of mercy. Both of these - Divine Good and Divine Truth - are attributed to the Lord. If solely Divine Truth were His, no mortal man could be saved, for truths condemn everyone to hell. But Divine Good, which is the essence of mercy, raises people up from hell towards heaven. Divine Truth and Divine Good are what kings and priests in the Jewish Church represented; and Melchizedek as king of Salem and priest to God Most High represented them too.