Acts 13:18

For about forty years 'he bore with them in the Desert';

Acts 7:36

He it was who led them out, after he had shown wonders and signs in Egypt, in the Red Sea, and in the Desert during forty years.

Acts 7:39-43

Yet our ancestors refused him obedience; more than that, they rejected him, and in their hearts turned back to Egypt,

1 Corinthians 10:1-10

I want you to bear in mind, Brothers, that all our ancestors were beneath the cloud, and all passed through the sea;

Hebrews 3:7-10

Therefore, as the Holy Spirit says-- 'If to-day you hear God's voice,

Hebrews 3:16-19

Who were they who heard God speak and yet provoked him? Were not they all those who left Egypt under the leadership of Moses?

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
He it was who led them out, after he had shown wonders and signs in Egypt, in the Red Sea, and in the Desert during forty years.
1 Corinthians 10:1
I want you to bear in mind, Brothers, that all our ancestors were beneath the cloud, and all passed through the sea;
Hebrews 3:7
Therefore, as the Holy Spirit says-- 'If to-day you hear God's voice,