Mark 6:7

And He calleth to Him the twelve, and began to send them forth by two and two, and was giving them authority over the unclean spirits;

Mark 3:13-14

And He goeth up into the mountain, and called to Himself those whom He wished.

Matthew 10:1-5

And, having called to Him His twelve disciples, He gave them authority over unclean spirits, so as to cast them out, and to heal every disease and every sickness.

Matthew 10:9-14

Procure neither gold, nor silver, nor brass, for your girdles;

Mark 16:17

And these signs shall accompany those having believed: in My name will they cast out demons: they will speak with tongues;

Luke 6:13-16

And when it became day, He called His disciples; and, having selected twelve from them, (whom He also called apostles):

Luke 9:1-6

And, having called together the twelve, He gave them power and authority over all the demons, and to heal diseases;

Luke 10:1

Now after these things the Lord appointed seventy others; and sent them away, two and two, before His face, into every city and place, whither He Himself was about to come.

Luke 10:3-12

Go your ways; behold, I am sending you forth as lambs in the midst of wolves.

Luke 10:17-20

And the seventy returned with joy, saying, "Lord, even the demons are subject to us in Thy name!"

Revelation 11:3

And I will give to My two witnesses, and they shall prophesy a thousand two hundred and sixty days, clothed in sackcloth."

Treasury of Scripture Knowledge

Summary

And he called unto him the twelve, and began to send them forth by two and two; and gave them power over unclean spirits;

Two and

Bible References

The twelve

Mark 3:13
And He goeth up into the mountain, and called to Himself those whom He wished.
Matthew 10:1
And, having called to Him His twelve disciples, He gave them authority over unclean spirits, so as to cast them out, and to heal every disease and every sickness.
Luke 6:13
And when it became day, He called His disciples; and, having selected twelve from them, (whom He also called apostles):
Luke 9:1
And, having called together the twelve, He gave them power and authority over all the demons, and to heal diseases;
Luke 10:3
Go your ways; behold, I am sending you forth as lambs in the midst of wolves.

Two and

Revelation 11:3
And I will give to My two witnesses, and they shall prophesy a thousand two hundred and sixty days, clothed in sackcloth."

Power

Mark 16:17
And these signs shall accompany those having believed: in My name will they cast out demons: they will speak with tongues;
Luke 10:17
And the seventy returned with joy, saying, "Lord, even the demons are subject to us in Thy name!"