The law of Numbers 5:11-31 was given by God to protect the socially weak among His people - in this case, to protect the woman from her suspicious husband.
This article is a sermon on Numbers 14:13-45.
This article provides fourteen points on how the account of Numbers 21:4-9 deepens our understanding of the gospel.
This article considers Numbers 25:13 and Phinehas's jealousy for God.
This article contains a sermon on Numbers 25:1-18.