1 Peter 1:22-23
Seeing you have purified your souls in obeying the truth through the Spirit to unfeigned love of the brothers…
The word thus translated means extended, or on the stretch. It conveys the idea of a constant tension such as is supplied in machinery by a steel spring. In one department of a sewing machine all depends on the thread being kept constantly tight, so that the moment any slackness occurs, the loose portion is picked up instantly and without fail. If that operation were left dependent on the watchfulness and quickness of a human operator, it would entirely fail. The worker would grow weary, would forget, would hasten to tighten the thread after the time was past, and all would go to wreck and ruin. But by entrusting the watch and the work to a bent elastic steel wire, an absolute infallibility is secured. The watcher never forgets, the worker never wearies. The work is done perfectly, and always done at the right moment. The spring is always on the stretch and never misses. Though it is obliged to watch the slackening, and pull the thread instantly tight, a hundred times a minute, all day long for twenty years, it never once forgets or fails. The precept requires a love of this sort watching and working in a Christian's heart. If you need to remember your duty every time that a sudden injury occurs, you will not be in time with the soft answer that turns away wrath. Before love has gathered itself up, and determined on its course, the opportunity will be past. The disciple of Christ will appear as irascible, passionate, and revengeful as other men. There must be a spring — a law of love set once for all as a faculty of the new heart, that will operate instantaneously and uniformly.
Parallel VersesKJV: Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, see that ye love one another with a pure heart fervently: