Concise Bible Dictionary:

In the New Testament there are ten words translated “ordain.” The passages that might seem to have some reference to the impartation of a sacerdotal supremacy are:
1. Christ ordained his twelve apostles (Mark 3:1414And he ordained twelve, that they should be with him, and that he might send them forth to preach, (Mark 3:14)). Here the word is ποιέω, “to do, make.”