Christians have no excuse for not loving, "because the love of God has been poured out within our hearts through the Holy Spirit who was given to us" (Rom. 5:5). We do not have to manufacture love; we only have to share the love we have been given. We do not have to be humanly taught to love, because we ourselves "are taught by God to love one another" (1 Thes. 4:9). We are therefore told to "pursue love" (1 Cor. 14:1), to "put on love" (Col. 3:14), to "increase and abound in love" (1 Thes. 3:12; Phil. 1:9), to be sincere in love (2 Cor. 8:8), to be unified in love (Phil. 2:2), to be "fervent" in love (1 Pet. 4:8), and to "stimulate one another to love (Heb. 10:24).
John MacArthur