Why is faith in Christ emphasized over religious practices in Numbers?

The Book of Numbers clearly underscores that while the Israelites had various religious practices, true salvation is found only in faith in Christ and not in these rituals. For instance, the types and shadows presented, like the tabernacle, serve only to point toward the true reality of Christ Himself. Trusting in religious symbols or practices, such as the tabernacle or sacrifices, leads to misunderstanding; salvation comes exclusively through faith in Jesus Christ, as He is the fulfillment of all the law and prophets, making Him our sole means of salvation.