What will Jesus deny to those who deny Him?
Certainly not salvation for we know God is the Savior of all humanity.
"..we have fixed our hope on the living God, who is the Savior of all humanity, especially of believers." (1 Timothy 4:10)
What Jesus denies to those who deny Him in this age in which we live is to "REIGN" with Christ during the one thousand year age that follows the return of Jesus to this Earth.
"If we endure, we will also REIGN with Him; If we deny Him, He also will deny us." (2 Timothy 2:12).
When Jesus returns the mortals left living on this earth will be reigned over by those who have placed their trust in God up until that time. Those who have died will be raised to life . At the end of the thousand years, mortals being reigned over will rebel against bringing destruction to this earth. Then all unjust mortals will be raised and stand before the Great White Throne of God to give account and be judged by Jesus. All of them will bow and acclaim that Jesus Christ is Lord - to the glory of God the Father.
"As surely as I live, says the Lord, every knee will bow before me; every tongue will acknowledge God...at the name of Jesus every knee shall bow, in heaven and on earth and under the earth and every tongue acknowledge that Jesus Christ is Lord, to the glory of God the Father." (Romans 14:11; Philippians 2:10-11)
They will then die the second time and raised immortal when death is abolished. God's plan is to be "All in all".
"For as in Adam all die, even so in Christ, all shall be made alive...For he must reign until he has put all his enemies under His feet...The last enemy is being abolished: death... that God may be All in all." (1 Corinthians 15:20-29).
There has always been a remnant of people who believe God. These all endure to the end of life with peace and hope in their heart. All of them will be raised to "REIGN" with Christ Jesus during the one thousand year age that follows the coming of Jesus. That reign is what men who deny Jesus will be denied, however, they will saved and made alive thereafter - or the Bible is false.
"For the grace of God has appeared, bringing salvation to everyone. 12It instructs us to renounce ungodliness and worldly passions, and to live sensible, upright, and godly lives in the present age, 13as we await the blessed hope and glorious appearance of our great God and Savior Jesus Christ. 14He gave Himself for us to redeem us from all lawlessness and to purify for Himself a people for His own possession, zealous for good deeds." (Titus 2:11-14)