And those who heard it said, “Who then can be saved?” But He said, “The things which are impossible with men are possible with God.” (Luke 18:26-27)
It is impossible with men to save themselves.
Only God can save men.
“Salvation belongs to the LORD” (Psalm 3:8)
Only God has saved us through Christ Jesus:
“But when the kindness and the love of God our Savior toward man appeared, not by works of righteousness which we have done, but according to His mercy He saved us, through the washing of regeneration and renewing of the Holy Spirit, whom He poured out on us abundantly through Jesus Christ our Savior, that having been justified by His grace we should become heirs according to the hope of eternal life. (Titus 3:4-7)
After these things I looked, and behold, a great multitude which no one could number, of all nations, tribes, peoples, and tongues, standing before the throne and before the Lamb, clothed with white robes, with palm branches in their hands, and crying out with a loud voice, saying, “Salvation belongs to our God who sits on the throne, and to the Lamb!” (Revelation 7:9-10)