Hebrews 3:17

And with whom was he provoked forty years? was it not with those that sinned, whose carcases fell in the wilderness?

Acts 7:36

He led them out, doing wonders and miracles in the land of Egypt, and in the Red Sea, and in the wilderness forty years.

John 3:19-21

And this is the condemnation, that light has come into the world, and men love darkness rather than light; for their works are evil.

Acts 13:18

and when he supported them about the time of forty years in the wilderness,

Romans 1:28

And as they did not approve to have God in their knowledge, God gave them up to a reprobate mind, to do those things which are inappropriate;

Ephesians 4:30

And grieve not the Holy Spirit of God, by whom you were sealed unto the day of redemption.

Hebrews 3:9-10

whom our fathers tempted in proving me, and saw my works forty years.

Treasury of Scripture Knowledge

Summary

Forty years long was I grieved with this generation, and said, It is a people that do err in their heart, and they have not known my ways:

Forty

Bible References

Forty

Hebrews 3:9
whom our fathers tempted in proving me, and saw my works forty years.

And they

John 3:19
And this is the condemnation, that light has come into the world, and men love darkness rather than light; for their works are evil.
Romans 1:28
And as they did not approve to have God in their knowledge, God gave them up to a reprobate mind, to do those things which are inappropriate;