17 Then he made two nets of checker work with wreaths of chain work for the capitals upon the tops of the pillars; a net for the one capital, and a net for the other capital. 18 Likewise he made pomegranates; in two rows round about upon the one network, to cover the capital that was upon the top of the pillar; and he did the same with the other capital. 19 Now the capitals that were upon the tops of the pillars in the vestibule were of lily-work, four cubits. 20 The capitals were upon the two pillars and also above the rounded projection which was beside the network; there were two hundred pomegranates, in two rows round about; and so with the other capital. 21 He set up the pillars at the vestibule of the temple; he set up the pillar on the south and called its name Jachin; and he set up the pillar on the north and called its name Bo'az.
Matthew Henry's Commentary on 1 Kings 7:17-21
Commentary on 1 Kings 7:13-47
(Read 1 Kings 7:13-47)
The two brazen pillars in the porch of the temple, some think, were to teach those that came to worship, to depend upon God only, for strength and establishment in all their religious exercises. "Jachin," God will fix this roving mind. It is good that the heart be established with grace. "Boaz," In him is our strength, who works in us both to will and to do. Spiritual strength and stability are found at the door of God's temple, where we must wait for the gifts of grace, in use of the means of grace. Spiritual priests and spiritual sacrifices must be washed in the laver of Christ's blood, and of regeneration. We must wash often, for we daily contract pollution. There are full means provided for our cleansing; so that if we have our lot for ever among the unclean it will be our own fault. Let us bless God for the fountain opened by the sacrifice of Christ for sin and for uncleanness.