Why is it important to call Jesus Lord?

Acknowledging Jesus as 'Lord' is crucial for genuine faith as it reflects an understanding of His sovereignty over all creation. In the context of Matthew 15, the woman approaches Christ with a profound humility, recognizing Him not just as a miracle worker but as her Master. This title implies her submission and the understanding that He is the only one who can grant mercy and deliverance. The calling upon the name of the Lord is imperative because, as Scripture states, 'Whosoever shall call on the name of the Lord shall be saved' (Romans 10:13). It emphasizes the necessity of faith that is both personal and relational.