Acts 13:18

For about forty years he put up with them in the wilderness.

Acts 7:36

This man led them out, performing wonders and signs in the land of Egypt and in the Red Sea and in the wilderness for forty years.

Acts 7:39-43

But our fathers refused to obey him. Instead, they rejected him and in their hearts turned back to Egypt,

1 Corinthians 10:1-10

For I do not want you to be unaware, brethren, that our fathers were all under the cloud and all passed through the sea;

Hebrews 3:7-10

Therefore, as the Holy Spirit says: "Today, if you will hear his voice,

Hebrews 3:16-19

Who were they who heard and rebelled? Were they not all those Moses led out of Egypt?

Treasury of Scripture Knowledge

Summary

And about the time of forty years suffered he their manners in the wilderness.

Bible References

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Acts 7:36
This man led them out, performing wonders and signs in the land of Egypt and in the Red Sea and in the wilderness for forty years.
1 Corinthians 10:1
For I do not want you to be unaware, brethren, that our fathers were all under the cloud and all passed through the sea;
Hebrews 3:7
Therefore, as the Holy Spirit says: "Today, if you will hear his voice,