John 3:30

He must grow greater and greater, but I less and less."

Matthew 13:31-33

He told them this story, as follows: "The kingdom of heaven may be compared to a mustard seed which a man took and sowed in his field.

Acts 13:36-37

For David, after having served God's purpose in his own generation, fell asleep and was laid among his forefathers, and so he did experience decay,

1 Corinthians 3:5

Then what is Apollos? Or what is Paul? Mere servants through whom you came to believe, as the Lord gave each of us his task.

2 Corinthians 3:7-11

Now if the old religious service which resulted in death, although its law was carved in letters of stone, was introduced with a splendor so great that the Israelites could not keep their eyes fixed on Moses' face because of the splendor that was fading from it,

Colossians 1:18

Yes, He is the Head of the church as His body. For He is the beginning, the first-born among the dead, so that He alone should stand first in everything.

Hebrews 3:2-6

to see how faithful He was to God who appointed Him, just as Moses was in all the house of God.

Revelation 11:15

Then the seventh angel blew his trumpet, and loud voices were heard in heaven, saying, "The sovereignty of the world has come into the possession of our Lord and His Christ, and He will reign forever and ever."

Treasury of Scripture Knowledge

Summary

He must increase, but I must decrease.

General references

Bible References

Must increase

Matthew 13:31
He told them this story, as follows: "The kingdom of heaven may be compared to a mustard seed which a man took and sowed in his field.
Revelation 11:15
Then the seventh angel blew his trumpet, and loud voices were heard in heaven, saying, "The sovereignty of the world has come into the possession of our Lord and His Christ, and He will reign forever and ever."

But

Acts 13:36
For David, after having served God's purpose in his own generation, fell asleep and was laid among his forefathers, and so he did experience decay,
1 Corinthians 3:5
Then what is Apollos? Or what is Paul? Mere servants through whom you came to believe, as the Lord gave each of us his task.
2 Corinthians 3:7
Now if the old religious service which resulted in death, although its law was carved in letters of stone, was introduced with a splendor so great that the Israelites could not keep their eyes fixed on Moses' face because of the splendor that was fading from it,
Colossians 1:18
Yes, He is the Head of the church as His body. For He is the beginning, the first-born among the dead, so that He alone should stand first in everything.
Hebrews 3:2
to see how faithful He was to God who appointed Him, just as Moses was in all the house of God.

General references

Mark 1:7
He kept preaching the following message, "After me there is coming One who is stronger than I am, whose shoes I am not fit to stoop down and untie.