So much of what we saw in the Old Testament is a type, or illustration, of the New Testament. Such as the Brazen Serpent (Numbers 21), Jesus used that as a type of the Cross John 3:14 AMP). And just as Moses lifted up the serpent in the desert [on a pole], it is necessary that the Son of Man be lifted up on the cross [Num. 21:9.]. Probably the best type for the Christian life is that of Israel’s conquest of Canaan, Gods Promised Land to his people. It is a type of both the believer's free gift of salvation, given to us from God without merit as well as the believer’s warfare - in the inward life. The inward life is where the quality of our Christian life is discovered and developed.