So the father knew (egnw oun o pathr). Second aorist active indicative of ginwskw. Inferential use of oun. Himself believed (episteusen auto). Not just the word of Jesus (verse Exodus 50 ), but complete faith in Jesus himself as the Messiah, absolute use of pisteuw as in Exodus 1:7 . And his whole house (kai h oikia autou). All his family, the first example of a whole family believing in Jesus like the later case of Crispus ( Acts 18:8 ).