Luke 4:43

But he said to them, I have to give the good news of the kingdom of God in other towns, because that is why I was sent.

Isaiah 42:1-4

See my servant, whom I am supporting, my loved one, in whom I take delight: I have put my spirit on him; he will give the knowledge of the true God to the nations.

Isaiah 48:16

Come near to me, and give ear to this; from the start I did not keep it secret; from the time of its coming into existence I was there: and now the Lord God has sent me, and given me his spirit.

Isaiah 61:1-3

The spirit of the Lord is on me, because I am marked out by him to give good news to the poor; he has sent me to make the broken-hearted well, to say that the prisoners will be made free, and that those in chains will see the light again;

Mark 1:14-15

Now after John had been put in prison, Jesus came into Galilee, preaching the good news of God,

Mark 1:38-39

And he said to them, Let us go to other parts into the nearest towns, so that I may give teaching there, because for this purpose I came.

John 6:38-40

For I have come down from heaven, not to do my pleasure, but the pleasure of him who sent me.

John 9:4

While it is day we have to do the works of him who sent me: the night comes when no work may be done.

John 20:21

And Jesus said to them again, May peace be with you! As the Father sent me, even so I now send you.

Acts 10:38

About Jesus of Nazareth, how God gave the Holy Spirit to him, with power: and how he went about doing good and making well all who were troubled by evil spirits, for God was with him.

2 Timothy 4:2

Be preaching the word at all times, in every place; make protests, say sharp words, give comfort, with long waiting and teaching;

Treasury of Scripture Knowledge

Summary

And he said unto them, I must preach the kingdom of God to other cities also: for therefore am I sent.

General references

Bible References

I must

Mark 1:14
Now after John had been put in prison, Jesus came into Galilee, preaching the good news of God,
John 9:4
While it is day we have to do the works of him who sent me: the night comes when no work may be done.
Acts 10:38
About Jesus of Nazareth, how God gave the Holy Spirit to him, with power: and how he went about doing good and making well all who were troubled by evil spirits, for God was with him.
2 Timothy 4:2
Be preaching the word at all times, in every place; make protests, say sharp words, give comfort, with long waiting and teaching;

Therefore

Isaiah 42:1
See my servant, whom I am supporting, my loved one, in whom I take delight: I have put my spirit on him; he will give the knowledge of the true God to the nations.
Isaiah 48:16
Come near to me, and give ear to this; from the start I did not keep it secret; from the time of its coming into existence I was there: and now the Lord God has sent me, and given me his spirit.
Isaiah 61:1
The spirit of the Lord is on me, because I am marked out by him to give good news to the poor; he has sent me to make the broken-hearted well, to say that the prisoners will be made free, and that those in chains will see the light again;
John 6:38
For I have come down from heaven, not to do my pleasure, but the pleasure of him who sent me.
John 20:21
And Jesus said to them again, May peace be with you! As the Father sent me, even so I now send you.

General references

Matthew 9:35
And Jesus went about all the towns and small places, teaching in their Synagogues and preaching the good news of the kingdom and making well all sorts of disease and pain.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain