What does the Bible say about God's call to salvation?

In Isaiah 55:1-4, God issues a powerful invitation, encouraging those who are spiritually thirsty to come to Him for nourishment and satisfaction. This call is not a general offer to all but rather an irresistible call to His chosen people, as expressed by Spurgeon. The thirsty represent those who recognize their need for salvation and desire a relationship with God, which can only be fulfilled through Christ, who is described as the living water and the bread of life. This gospel call emphasizes that salvation comes without cost, highlighting the grace of God in freely offering His love and forgiveness to those who seek Him.