7:23 And he made a molten {o} sea, ten cubits from the one brim to the other: [it was] round all about, and his height [was] five cubits: and a line of thirty cubits did compass it round about.
(o) So called for the size of the vessel.
7:23 A Sea - He melted the brass, and cast it into the form of a great vessel, for its vastness called a sea, which name is given by the Hebrews to all great collections of waters. The use of it was for the priests to wash their hands and feet, or other things as occasion required, with the water which they drew out of it.
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.