Why do sovereign grace Christians emphasize God's actions over man's actions?

The emphasis on God's actions over man's actions is pivotal in Sovereign Grace theology, which holds that salvation is entirely a work of God's grace. Predicated on passages like Ephesians 2:8-9, which state that we are saved by grace through faith, it is clear that salvation is not something earned by human effort but a divine gift. This foundational belief drives the message of God's sovereignty in the plan of salvation and the preeminence of His will in the lives of believers. God-sent preachers focus on what God has done, highlighting His sovereignty, while man's efforts are secondary and secondary to God’s power and grace in our lives.