Ezekiel 28:15

Thou wast perfect in thy ways from the day that thou wast created, till iniquity was found in thee.

Thou wast perfect in thy ways - prosperous (Grotius), and having no defect. So Hiram was a sample of the Tyrian monarch in his early days of wisdom and prosperity, (, etc.)

Till iniquity was found in thee - like the primeval man, thou hast fallen by abusing God's gifts, and so hast provoked God's wrath.