congenial
From LSJ
δι' ἐμοῦ βασιλεῖς βασιλεύουσιν, καὶ οἱ δυνάσται γράφουσιν δικαιοσύνην → through me kings rule, and princes dictate justice (Proverbs 8:15, LXX version)
pleasant: P. and V. ἡδύς, ἀρεστός.
suitable: P. and V. ἐπιτήδειος, σύμφορος, πρόσφορος, σύμμετρος.