Set Your Hope
gird up the loins of your mind’ (so AV), an almost unintelligible phrase for modern readers unfamiliar with the ancient Oriental custom of gathering up one’s long robes by pulling them between the legs and then wrapping and tying them around the waist, so as to prepare for running, fast walking, or other strenuous activity
Be sober forbids not only physical drunkenness but also (since the phrases before and after have to do with attitudes of mind) letting the mind wander into any other kind of mental intoxication or addiction which inhibits spiritual alertness, or any laziness of mind which lulls Christians into sin through carelessness (or ‘by default’). Peter uses the same word in 4:7 and 5:8 to encourage spiritual alertness for prayer and for resisting the devil. He knows how easily Christians can lose their spiritual concentration through ‘mental intoxication’ with the things of this world
To be holy ‘as God is holy’ includes a full and pervading holiness that reaches to every aspect of our personalities. It involves not only avoiding outward sin but also maintaining an instinctive delight in God and his holiness as an undercurrent of heart and mind throughout the day
The final reason why some things are right and others wrong, and why there are moral absolutes in the universe, is that God delights in things that reflect his moral character (and thus reflect his excellence) and hates what is contrary to his character. Therefore, we are to imitate him
The fear here recommended is … a holy self-suspicion and fear of offending God, which may not only consist with assured hope of salvation, and with faith, and love, and spiritual joy, but is their inseparable companion … This fear is not cowardice: it doth not debase, but elevates the mind; for it drowns all lower fears, and begets true fortitude and courage to encounter all dangers, for the sake of a good conscience and the obeying of God.
But love for fellow Christians is seen in the New Testament more as a component or a result of sanctification than its goal.
‘Once you have begun to grow in holiness so that you have a genuine affection for one another, make your love for each other earnest, deep, and strong.’