Some of the greatest pronouncements of Scripture respecting God and his work of redeeming grace are introduced in order to enforce practical exhortation. Paul, for example, is urging the necessity of unselfish consideration for others, that each one should not look on his own things but every one also on the things of others. It is to enforce this duty that he says: ‘Let this mind be in you, which was also in Christ Jesus: who, being in the form of God, thought it not robbery to be equal with God: but made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men’ (Phil. 2:5–7). Again, when urging upon the church at Corinth the grace of Christian liberality, he says: ‘For ye know the grace of our Lord Jesus Christ, that, though he was rich, yet for your sakes he became poor, that ye through his poverty might be rich’ (2 Cor. 8:9). It was not the practice of the apostle only; the same feature appears in the teaching of the Saviour himself. It is when he urged upon his disciples the grand virtue of humility and of readiness to serve rather than be served that he gave utterance to one of his most significant pronouncements: ‘For even the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many’ (Mark 10:45). So it is in our text. When John says, ‘Herein is love, not that we loved God, but that he loved us’, he makes appeal to God’s greatest work in giving his own Son in order to drive home the practical virtue: ‘Beloved, let us love one another’ (I John 4:7).
This characteristic of Scripture reminds us that the profoundest truths respecting God and his work of redeeming grace bear directly upon the most elementary duties of the Christian vocation. Doctrine is indeed high. But Christian life is also; it is the life of a high and holy and heavenly calling. —John Murray, God’s Love and Our Life