5 And the thickness of it was an handbreadth, and the brim of it like the work of the brim of a cup, with flowers with flowers...: or, like a lilyflower of lilies; and it received and held three thousand baths.
English Standard Version
5 Its thickness was a handbreadth.A handbreadth was about 3 inches or 7.5 centimeters And its brim was made like the brim of a cup, like the flower of a lily. It held 3,000 baths.A bath was about 6 gallons or 22 liters
5 The Sea was three inches thick and flared at the rim like a cup, or a lily. It held about 18,000 gallons.
New King James Version
5 It was a handbreadth thick; and its brim was shaped like the brim of a cup, like a lily blossom. It contained three thousand baths.
New Living Translation
5 The walls of the Sea were about three inches thick, and its rim flared out like a cup and resembled a water lily blossom. It could hold about 16,500 gallons of water.
Matthew Henry's Commentary on 2 Chronicles 4:5
The furniture of the temple.
Here is a further account of the furniture of God's house. Both without doors and within, there was that which typified the grace of the gospel, and shadowed out good things to come, of which the substance is Christ. There was the brazen altar. The making of this was not mentioned in the book of Kings. On this all the sacrifices were offered, and it sanctified the gift. The people who worshipped in the courts might see the sacrifices burned. They might thus be led to consider the great Sacrifice, to be offered in the fulness of time, to take away sin, and put an end to death, which the blood of bulls and goats could not possibly do. And, with the smoke of the sacrifices, their hearts might ascend to heaven, in holy desires towards God and his favour. In all our devotions we must keep the eye of faith fixed upon Christ. The furniture of the temple, compared with that of the tabernacle, showed that God's church would be enlarged, and his worshippers multiplied. Blessed be God, there is enough in Christ for all.