Kaitoi introduces a concessive contrast, setting a stated fact alongside what might seem to qualify it.

As a conjunction, καίτοι marks a concessive relation: Acts 14:17 places God's continuing witness alongside the statement that he did not leave himself without witness, while Hebrews 4:3 places completed works alongside the quoted exclusion from rest.

1. Concessive connector between clauses · dominant

   The form is tagged as a conjunction in both verses. In Acts 14:17 the APB renders “Yet he did not leave himself without witness” before describing rains, fruitful seasons, food, and gladness; in Hebrews 4:3 it renders “although the works were finished” alongside the statement about entering rest and the quoted oath.

   Acts 14:17Hebrews 4:3

In the Anselm Project Bible: The APB presents the concessive connection with “Yet” in Acts 14:17 and “although” in Hebrews 4:3. These renderings show the clauses' relation rather than establishing a separate English equivalent in each verse.