A.T. Robertson Commentary Acts 22:14

"And he said, The God of our fathers hath appointed thee to know his will, and to see the Righteous One, and to hear a voice from his mouth." — Acts 22:14 (ASV)

Hath appointed thee (προεχειρισατο). First aorist middle indicative of προχειριζω, old verb to put forth into one's hands, to take into one's hands beforehand, to plan, propose, determine. In the N.T. only in Ac 3:20; 22:14; 26:16. Three infinitives after this verb of God's purpose about Paul:

to know (γνωνα, second aorist active of γινωσκω) his will,

to see (ιδειν, second aorist active of οραω) the Righteous One (cf. 3:14), to hear (ακουσα, first aorist active of ακουω) a voice from his mouth.