Matthew 9:37

Then said he to his disciples, "The harvest is great, but the laborers are few:

Luke 10:2

And he said unto them, "The harvest is great: but the laborers are few. Pray therefore the Lord of the harvest, to send forth laborers into his harvest.

Psalm 68:11

The LORD gave the word; great was the company of the preachers.

Matthew 28:19

Go therefore and teach all nations, baptizing them in the name of the father and the son and the holy ghost;

Mark 16:15

And he said unto them, "Go ye into all the world, and preach the glad tidings to all creatures:

Luke 24:47

And that repentance, and remission of sins, should be preached in his name among all nations. And must begin at Jerusalem.

John 4:35-36

Say not ye, 'There are yet four months, and then cometh harvest?' Behold, I say unto you, lift up your eyes, and look on the regions: For they are white already unto harvest.

Acts 16:9

and a vision appeared to Paul in the night. There stood a man of Macedonia and prayed him saying, "Come into Macedonia and help us."

Acts 18:10

for I am with thee, and no man shall invade thee that shall hurt thee. For I have much people in this city."

1 Corinthians 3:9

We are God's laborers: ye are God's husbandry, ye are God's building.

2 Corinthians 6:1

We as helpers therefore exhort you, that ye receive not the grace of God in vain.

Philippians 2:19-21

I trust in the Lord Jesus for to send Timothy shortly unto you, that I also may be of good comfort, when I know what case ye stand in.

Colossians 4:11

and Jesus which is called Justus, which are of the circumcision. These only are my workfellows unto the kingdom of God, which were unto my consolation.

1 Thessalonians 5:12-13

We beseech you brethren, that ye know them which labour among you, and have the oversight of you in the Lord,

1 Timothy 5:17

The elders that rule well are worthy of double honour, most specially they which labour in the word and in teaching.

Treasury of Scripture Knowledge

Summary

Then saith he unto his disciples, The harvest truly is plenteous, but the labourers are few;

Bible References

The harvest

Matthew 28:19
Go therefore and teach all nations, baptizing them in the name of the father and the son and the holy ghost;
Mark 16:15
And he said unto them, "Go ye into all the world, and preach the glad tidings to all creatures:
Luke 10:2
And he said unto them, "The harvest is great: but the laborers are few. Pray therefore the Lord of the harvest, to send forth laborers into his harvest.
Luke 24:47
And that repentance, and remission of sins, should be preached in his name among all nations. And must begin at Jerusalem.
John 4:35
Say not ye, 'There are yet four months, and then cometh harvest?' Behold, I say unto you, lift up your eyes, and look on the regions: For they are white already unto harvest.
Acts 16:9
and a vision appeared to Paul in the night. There stood a man of Macedonia and prayed him saying, "Come into Macedonia and help us."
Acts 18:10
for I am with thee, and no man shall invade thee that shall hurt thee. For I have much people in this city."

But

Psalm 68:11
The LORD gave the word; great was the company of the preachers.
1 Corinthians 3:9
We are God's laborers: ye are God's husbandry, ye are God's building.
2 Corinthians 6:1
We as helpers therefore exhort you, that ye receive not the grace of God in vain.
Philippians 2:19
I trust in the Lord Jesus for to send Timothy shortly unto you, that I also may be of good comfort, when I know what case ye stand in.
Colossians 4:11
and Jesus which is called Justus, which are of the circumcision. These only are my workfellows unto the kingdom of God, which were unto my consolation.
1 Thessalonians 5:12
We beseech you brethren, that ye know them which labour among you, and have the oversight of you in the Lord,
1 Timothy 5:17
The elders that rule well are worthy of double honour, most specially they which labour in the word and in teaching.