'Line' in the Bible

“Speak to Zerubbabel governor of Judah, saying, ‘I am going to shake the heavens and the earth.

On that day,’ declares the Lord of hosts, ‘I will take you, Zerubbabel, the son of Shealtiel, My servant,’ declares the Lord, ‘and I will make you [through the Messiah, your descendant] like a signet ring, for I have chosen you [as the one with whom to renew My covenant to David’s line],’” declares the Lord of hosts.