How do we know that Jesus satisfies our spiritual needs?

In John 4:13-14, Jesus explicitly tells the Samaritan woman that whoever drinks of the water He gives will never thirst again, signifying that He alone can satisfy our spiritual hunger. Additionally, John 6:35 supports this claim where Jesus declares Himself the bread of life, stating that whoever comes to Him will never go hungry, and whoever believes in Him will never be thirsty. This assurance reassures believers that their deepest desires and longings can only be satisfied in a relationship with Christ, emphasizing that all spiritual sustenance comes from Him alone—a doctrine central to our faith, reflecting the biblical truth that apart from Him, we can accomplish nothing significant in relation to our salvation.