C. F. Keil and Franz Delitzsch on 2 Chronicles 8:17-18

2Ch 8:17-18 Voyage to Ophir. Cf. 1Ki 9:26-28, and the commentary on that passage, where we have discussed the divergences of our narrative, and have also come to the conclusion that Ophir is not to be sought in India, but in Southern Arabia. By אז the date of this voyage is made to fall in the period after the building of the temple and the palace, i.e., in the second half of Solomon’s reign.