Ἐξομολογοῦμαί [2 verses](1st sg pres ind mp ) "I thank " is from exomologeo, which means "to confess," "to admit," and "to acknowledge." Christ is not thanking God here but admitting a truth.  - The Greek word translated as "thank" really means "to confess," "to admit," and "to acknowledge." It is in the form where the subject is either being acted upon or acts on himself. Christ is confessing himself to God here, acknowledging something about himself.