'Eighteen' in the Bible

And the Israelites served Eglon king of Moab eighteen years.

and they oppressed and crushed Israel that year. For eighteen years they oppressed all the Israelites who were beyond the Jordan in the land of the Amorites, which is in Gilead.

He cast the two pillars of bronze; the one pillar was eighteen cubits high, and a [measuring] line of twelve cubits measured the circumference of both.

Jehoiachin was eighteen years old when he became king, and he reigned [only] three months in Jerusalem. His mother’s name was Nehushta daughter of Elnathan of Jerusalem.

The height of the one pillar was eighteen cubits (27 ft.), and a capital of bronze was on top of it. The height of the capital was three cubits (4.5 ft.); a network (lattice work) and pomegranates around the capital were all of bronze. And the second pillar had the same as these, with a network.

Meshelemiah had sons and relatives, eighteen courageous men.

Rehoboam loved Maacah the daughter (granddaughter) of Absalom more than all his wives and concubines—for he had taken eighteen wives and sixty concubines, and he fathered twenty-eight sons and sixty daughters.

Concerning the pillars, the height of each pillar was eighteen cubits (twenty-seven feet), and a line [an ornamental molding] of twelve cubits (eighteen feet) went around its circumference; it was four fingers thick, and [the pillar was] hollow.

“Thus says the Lord of hosts: ‘These people say, “The time has not come that the Lord’s house (temple) should be rebuilt.”’”

Or do you assume that those eighteen on whom the tower in Siloam fell and killed were worse sinners than all the others who live in Jerusalem?

And there was a woman who for eighteen years had had an illness caused by a spirit (demon). She was bent double, and could not straighten up at all.

And this woman, a daughter (descendant) of Abraham whom Satan has bound for eighteen long years, should she not have been released from this bond on the Sabbath day?”