This article on Joshua 1:6-8 is about being strong and courageous, trusting the Word of God.
Working from the scripture passage of Joshua 5:13 - Joshua 6:5 on the conquest of Jericho, this article shows the relationship between worship and evangelism, or mission work. Just as in worship God's people are led by Christ and are in His presence, so in evangelism Christ leads His church and His people go with His presence.
This article on Joshua 6:15 is about living out of the victory of God.
This article looks at Joshua 23:8, discussing what it means to cleave to the Lord and describing the fruit of cleaving to the Lord.