How can one effectively respond to God’s call to salvation?

Responding to God's call involves a heartfelt coming to Christ, recognizing our own spiritual thirst and neediness. Isaiah 55 emphasizes the invitation to all who are thirsty to come and drink from the waters that Christ provides. This response is not merely physical but a spiritual act of faith, leaning wholly upon Him for salvation. Believers are encouraged to approach Christ without pretense, relying on His grace alone to satisfy their deepest needs. This act of coming to Christ signifies an acknowledgment of His lordship and a trust in His saving work.