Mark 3:14

And He appointed twelve [disciples], so that they would be with Him [for instruction] and so that He could send them out to preach [the gospel as apostles—that is, as His special messengers, personally chosen representatives],

Luke 9:1-6

Now Jesus called together the twelve [disciples] and gave them [the right to exercise] power and authority over all the demons and to heal diseases.

Luke 10:1-11

Now after this the Lord appointed seventy others, and sent them out ahead of Him, two by two, into every city and place where He was about to go.

Luke 24:47

and that repentance [necessary] for forgiveness of sins would be preached in His name to all the nations, beginning from Jerusalem.

John 15:16

You have not chosen Me, but I have chosen you and I have appointed and placed and purposefully planted you, so that you would go and bear fruit and keep on bearing, and that your fruit will remain and be lasting, so that whatever you ask of the Father in My name [as My representative] He may give to you.

Acts 1:8

But you will receive power and ability when the Holy Spirit comes upon you; and you will be My witnesses [to tell people about Me] both in Jerusalem and in all Judea, and Samaria, and even to the ends of the earth.”

Acts 1:24-25

They prayed and said, “You, Lord, who know all hearts [their thoughts, motives, desires], show us which one of these two You have chosen

Galatians 1:1

Paul, an apostle (not commissioned and sent from men nor through the agency of man, but through Jesus Christ—the Messiah—and God the Father, who raised Him from the dead),

Galatians 1:15-20

But when God, who had chosen me and set me apart before I was born, and called me through His grace, was pleased

Treasury of Scripture Knowledge

Summary

And he ordained twelve, that they should be with him, and that he might send them forth to preach,

Bible References

He ordained

John 15:16
You have not chosen Me, but I have chosen you and I have appointed and placed and purposefully planted you, so that you would go and bear fruit and keep on bearing, and that your fruit will remain and be lasting, so that whatever you ask of the Father in My name [as My representative] He may give to you.
Acts 1:24
They prayed and said, “You, Lord, who know all hearts [their thoughts, motives, desires], show us which one of these two You have chosen
Galatians 1:1
Paul, an apostle (not commissioned and sent from men nor through the agency of man, but through Jesus Christ—the Messiah—and God the Father, who raised Him from the dead),

And

Luke 9:1
Now Jesus called together the twelve [disciples] and gave them [the right to exercise] power and authority over all the demons and to heal diseases.
Luke 10:1
Now after this the Lord appointed seventy others, and sent them out ahead of Him, two by two, into every city and place where He was about to go.
Luke 24:47
and that repentance [necessary] for forgiveness of sins would be preached in His name to all the nations, beginning from Jerusalem.
Acts 1:8
But you will receive power and ability when the Holy Spirit comes upon you; and you will be My witnesses [to tell people about Me] both in Jerusalem and in all Judea, and Samaria, and even to the ends of the earth.”