Matthew 28:20

and teach them to practice all the commands that I have given you. And I myself will surely be with you all the days, down to the very close of an age."

Mark 16:15-16

Then He said to them, "You must go all over the world and preach the good news to all the creation.

Acts 20:27

for I never shrank from telling you God's whole plan.

Treasury of Scripture Knowledge

Summary

But the LORD said unto me, Say not, I am a child: for thou shalt go to all that I shall send thee, and whatsoever I command thee thou shalt speak.

General references

Bible References

For thou shalt

Matthew 28:20
and teach them to practice all the commands that I have given you. And I myself will surely be with you all the days, down to the very close of an age."
Mark 16:15
Then He said to them, "You must go all over the world and preach the good news to all the creation.
Acts 20:27
for I never shrank from telling you God's whole plan.

General references

Matthew 18:2
And He called a little child to Him, and had him stand in the midst of them,