A.T. Robertson Commentary 2 Corinthians 8:9

"For ye know the grace of our Lord Jesus Christ, that, though he was rich, yet for your sakes he became poor, that ye through his poverty might become rich." — 2 Corinthians 8:9 (ASV)

Though he was rich (πλουσιος ων). Concessive present participle ων from ειμ, to be.

Be became poor (επτωχευσεν). Ingressive aorist active indicative of πτωχευω (see verse 2 on πτωχεια).

Through his poverty (τη εκεινου πτωχεια). Instrumental case, by means of.

Might become rich (πλουτησητε). Ingressive first aorist active subjunctive of πλουτεω, to be rich with ινα (that). See on Lu 1:53; 1 Corinthians 4:8.