1 Jn 4:9
9 In this was manifested the love of God toward us,
because that God sent his only begotten Son into the world, that we might live through him.
This scripture reveals an dynamic of the Cross of Christ, why He died for His people, so that they might live through or because of Him. So the preaching of the Cross is the Power of God, His Death is the Power of God and Gods Love manifested. His Death ensures life, spiritual life for everyone He died, the cross is a power itself—the
sovereign power of God. Since God, out of His great love, sent Christ to die for His people that through His death we might have life, that death
must save and
give life to all the objects of God’s love.
The cross does not make salvation possible for all so that anyone can have it, if they will only take it. Christ’s death actually saves God’s elect people. “For the Son of man is come to seek and to save that which was lost” (Luke 19:10). In His death on the cross Christ did not merely make provision for salvation. He actually obtained salvation. Thus we read, “Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us” (Heb. 9:12). It is the very power that saves. The apostle teaches that when he says, “But we preach Christ crucified, unto the Jews a stumblingblock, and unto the Greeks foolishness; but unto them which are called, both Jews and Greeks,
Christ the power of God, and the wisdom of God” (I Cor. 1:23-24). Indeed, “Christ crucified” is the “power of God”-the sovereign effectual power of God that does actually save His people from all sin. God loves His people, Christ has died for them, surely then, they will all be saved.
A large portion of this is quoted from an article by Steve Houck
https://cprc.co.uk/pamphlets2/sovereigntyinsalvation/ section
God’s Love and the Cross