Deuteronomy 27:4

Therefore, it shall be when ye have passed the Jordan, that ye shall set up these stones, which I command you this day, in Mount Ebal, and thou shalt plaster them with plaster.

Deuteronomy 11:29-30

And it shall come to pass when the LORD thy God has brought thee in unto the land where thou goest to inherit it that thou shalt put the blessing upon Mount Gerizim and the curse upon Mount Ebal,

Joshua 8:30-33

Then Joshua built an altar unto the LORD God of Israel in Mount Ebal,

Treasury of Scripture Knowledge

Summary

Therefore it shall be when ye be gone over Jordan, that ye shall set up these stones, which I command you this day, in mount Ebal, and thou shalt plaister them with plaister.

Bible References

In mount ebal

Deuteronomy 11:29
And it shall come to pass when the LORD thy God has brought thee in unto the land where thou goest to inherit it that thou shalt put the blessing upon Mount Gerizim and the curse upon Mount Ebal,
Joshua 8:30
Then Joshua built an altar unto the LORD God of Israel in Mount Ebal,