The Lord is good to all; he has compassion on all he has made (Psalm 145:9). Many theologians refer to this as common grace. That's not because grace is common, but it is common to all mankind. The line is drawn between common grace and saving grace. Common grace restrains evil, gives people time to repent, provides fruitful seasons and food, and many other benefits that are common to all mankind.
Bruce Demarest wrote, "In sum, God's common grace facilitates that sustains and enhances life on a fallen planet." This planet is morally fallen with the sin of all mankind. While judgment is coming, until then God's common grace sustains the world in which we live.
God shows common grace even to those who reject God's goodness and compassion. They falsely believe there is no God who will judge them. To others, the goodness of God leads them to repentance. Or do you despise the riches of His goodness, forbearance and longsuffering, not knowing that the goodness of God leads you to repentance? (Romans 2:4).
God is temporally the Savior of all mankind in common grace. God, who is the Savior of all people, especially of those who believe (1 Timothy 4:10). However, the time of God's common grace will end for those who reject his saving grace in Christ. To the contrary, saving grace in Christ Jesus our Lord is everlasting.