1 Samuel 18:1
And it came to pass, when he had made an end of speaking unto Saul, that the soul of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul. And it came to pass, when he had made an end of speaking unto Saul, that the soul of Jonathan was knit with the soul of David, and Jonathan loved him as his own soul.
The verse describes souls knit together in deep, mutual love, with Jonathan loving David as his own soul and his own life and self. That bond was sacred and was brought about by the Lord so that Jonathan could help preserve David's life when Saul sought to kill him. Out of that love Jonathan and David made a covenant to be united as brothers. Their union is an example of a close bond that remained unbroken until death and throughout life.
The same knit-together language describes Timothy's close fellowship with Paul and his longing to share in the apostle's work. The verse also illustrates enduring Christian friendship, as when Sister Hastings and another believer were knit together in heart as David and Jonathan were, and their union endured unbroken for the rest of Sister Hastings's life.
The knitting of souls shows what happens in marriage when Christ reigns in the home, with husband and wife united in deep, true, unselfish love, blending their lives and living in harmony.