How do we know that salvation is completely of the Lord?

Salvation is depicted in the Scriptures as a work solely initiated and completed by God, which is deeply rooted in the doctrine of sovereignty. As Jonah 2:9 asserts, 'Salvation is of the Lord,' indicating that it is not attained through human effort or decision but is a divine gift. This concept is echoed in Ephesians 2:8-9, highlighting that we are saved by grace through faith, emphasizing that it is God's grace, not our works, that leads to salvation. Furthermore, the sovereignty of God ensures that He calls, justifies, and glorifies His people as outlined in Romans 8:30. This underscores that our faith rests not in our actions, but solely on the finished work of Christ.