NET
12 “Son of man, sing a lament for the king of Tyre, and say to him, ‘This is what the Sovereign Lord says: “‘You were the sealer of perfection, full of wisdom, and perfect in beauty.
Darby
12 Son of man, take up a lamentation upon the king of Tyre, and say unto him, Thus saith the Lord Jehovah: Thou, who sealest up the measure of perfection, full of wisdom and perfect in beauty,
KJV
12 Son of man, take up a lamentation upon the king of Tyrus, and say unto him, Thus saith the Lord GOD; Thou sealest up the sum, full of wisdom, and perfect in beauty.