God knew that for Joshua to be successful, he had to give priority to the Bible of those days, the Torah, the first five books of the Old Testament. 

Teaching of hundreds of years ago still confuses Christians today.

The Bible is the only true reliable source of truth.

The Bible must always be our resource for truth, even if it treads on our toes.

An important biblical corrective concerning the idea of inherited sinful nature. Warning: this one is more theological.

We always need to be honest with the words of Scripture. It means what it says. Yes, we must humbly submit to the commands of the Lord and we will reap eternal benefits.

Hearing the Word of God and meditating upon it brings life into our souls. The Bible is a living supernatural book, and will minister to those who spend time with it. Every problem of life is covered with blessings for victory in every situation.

Jesus said we should carefully watch our lives in order to remove that which should not be present, and replace with the fullness of His holy presence.

The Old Testament gives us types and symbols that can apply to our relationship with God today.

God commands us to be holy, knowing that He can give us the reality of spiritual holiness in our experience through our intimate relationship with Him.

All have sinned and failed to keep God's commandments. But there is a way of victory for the committed Christian to overcome.