Matthew 9:37

And he said to his disciples: "The harvest is abundant, but the laborers are few.

Luke 10:2

"The harvest," he said, "is abundant, but the laborers are few. Therefore pray to the Owner of the harvest to send laborers to gather in his harvest.

Matthew 28:19

Therefore go and make disciples of all the nations, baptizing them into the Faith of the Father, the Son, and the Holy Spirit,

Mark 16:15

Then he said to them: "Go into all the world, and proclaim the Good News to all creation.

Luke 24:47

And that repentance for forgiveness of sins should be proclaimed on his authority to all the nations--beginning at Jerusalem.

John 4:35-36

Do not you say that it still wants four months to harvest? Why, look up, and see how white the fields are for harvest!

Acts 16:9

And there one night Paul saw a vision. A Macedonian was standing and appealing to him--'Come over to Macedonia and help us.'

Acts 18:10

For I am with you, and no one shall do you harm, for I have many People in this city."

1 Corinthians 3:9

For we are God's fellow workers; you are God's harvest field, God's building.

2 Corinthians 6:1

Therefore, as God's fellow-workers, we also appeal to you not to receive his loving-kindness in vain.

Philippians 2:19-21

I hope, however, as one who trusts in the Lord Jesus, to send Timothy to you before long, so that I may myself be cheered by receiving news of you.

Colossians 4:11

Joshua, who is called Justus, also sends his greeting. These are the only converts from Judaism who have worked with me for the kingdom of God; I have found them a great comfort.

1 Thessalonians 5:12-13

We beg you, Brothers, to value those who toil among you, and are your leaders in the Lord's service, and give you counsel.

1 Timothy 5:17

Those Officers of the Church who fill their office well should be held deserving of especial consideration, particularly those whose work lies in preaching and 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
Therefore go and make disciples of all the nations, baptizing them into the Faith of the Father, the Son, and the Holy Spirit,
Mark 16:15
Then he said to them: "Go into all the world, and proclaim the Good News to all creation.
Luke 10:2
"The harvest," he said, "is abundant, but the laborers are few. Therefore pray to the Owner of the harvest to send laborers to gather in his harvest.
Luke 24:47
And that repentance for forgiveness of sins should be proclaimed on his authority to all the nations--beginning at Jerusalem.
John 4:35
Do not you say that it still wants four months to harvest? Why, look up, and see how white the fields are for harvest!
Acts 16:9
And there one night Paul saw a vision. A Macedonian was standing and appealing to him--'Come over to Macedonia and help us.'
Acts 18:10
For I am with you, and no one shall do you harm, for I have many People in this city."

But

1 Corinthians 3:9
For we are God's fellow workers; you are God's harvest field, God's building.
2 Corinthians 6:1
Therefore, as God's fellow-workers, we also appeal to you not to receive his loving-kindness in vain.
Philippians 2:19
I hope, however, as one who trusts in the Lord Jesus, to send Timothy to you before long, so that I may myself be cheered by receiving news of you.
Colossians 4:11
Joshua, who is called Justus, also sends his greeting. These are the only converts from Judaism who have worked with me for the kingdom of God; I have found them a great comfort.
1 Thessalonians 5:12
We beg you, Brothers, to value those who toil among you, and are your leaders in the Lord's service, and give you counsel.
1 Timothy 5:17
Those Officers of the Church who fill their office well should be held deserving of especial consideration, particularly those whose work lies in preaching and teaching.