Why is it essential to worship God correctly?

Worship is vital not only as an expression of our relationship with God but also as a demonstration of reverence for His holiness. In Leviticus 10, Nadab and Abihu's incorrect worship led to their death, highlighting that we cannot approach God in our own way. God commands that He must be sanctified by those who approach Him, as stated in Leviticus 10:3. This principle is essential now more than ever, as it teaches us to honor God's holiness and to understand that only through Christ's redemptive work can we be accepted in worship.