Adam Clarke on 1 Kings 5:18

And the stone-squarers - Instead of stone-squarers the margin very properly reads Giblites, הגבלים haggiblim; and refers to Eze 27:9, where we find the inhabitants of Gebal celebrated for their knowledge in ship-building. Some suppose that these Giblites were the inhabitants of Biblos, at the foot of Mount Libanus, northward of Sidon, on the coast of the Mediterranean Sea; famous for its wines; and now called Gaeta. Both Ptolemy and Stephanus Byzantinus speak of a town called Gebala, to the east of Tyre: but this was different from Gebal, or Biblos. It seems more natural to understand this of a people than of stone-squarers, though most of the versions have adopted this idea which we follow in the text.