How can we know that salvation is entirely of God?

Scripture unequivocally emphasizes that salvation is the work of God alone. As stated in Jonah 2:9, 'Salvation is of the Lord,' encapsulating the reality that He is both the initiator and the completer of our salvation. Throughout Scripture, we see that God sovereignly initiates redemption, not based on any foreseen merit in the believers, but solely through His grace and purpose. This is particularly emphasized in passages like Ephesians 2:8-9, where Paul explains that by grace we have been saved through faith, and that not of ourselves; it is the gift of God, not of works, lest anyone should boast. This clearly points to the fact that no human effort contributes to one's salvation. Recognizing this truth leads believers to humbly worship and give glory to God for His amazing grace in choosing and redeeming a people for Himself.