Here we have an absolute and unconditional promise from a sovereign, powerful, merciful, and gracious God. This is a promise of eternal salvation given in light of the fact that God is faithful to save sinners based on His free, unmerited favor. This is revealed in His purpose to save sinners, to justify the ungodly, conditioned, not on the sinner, but on a God-sent Substitute. The only Substitute sent of God is God's only-begotten Son, the Lord Jesus Christ, who alone is able to satisfy God's law and justice on their behalf. Sinners, active idolaters, are commanded to believe God's promise of salvation conditioned on Christ alone, and to repent of ever thinking that anything but His righteousness could ever recommend them unto God or entitle them to any part of Heaven. This is how we look unto God, the God who justifies sinners based on the righteousness of Christ.