How sad whether Savior prayed in Jn 17 11: 12 for the opposite result but knew that there would be those who perverted His Will and caused other to follow suit.
You do understand that for every bible verse you render, another can find a verse to question the interpretation of first verse rendered. Therein lies the brilliance of Jesus in establishing the magisterium, of course rejected by you. However, your rejection is interpreted as one of sinful pride.
ROTFLOL. Don't believe it. That's the lie the magisterium tells its captives in order to keep them from reading the Bible for themselves to know the truth.
You've been given dozens of verses, some from the mouth of Christ Himself, which tell you that all those who have been given true faith in Jesus Christ as Lord, God and Savior are saved.
And STILL you deny it.
Matthew 7:21 simply says that some men have been given this true faith and some men only think they are in receipt of true faith. And how does Christ tell men to know the difference? We follow His lead. We search the Scriptures to see if this be so.
Rome tells men that salvation is difficult and complicated and confusing; a series of works man must accomplish before he is good enough to deserve salvation. Rome lies. No man but Christ is good enough nor equal to the penalty paid for our sins. Thank God for His merciful free grace which simply means that we believe God has created us and Christ has died for us and the Holy Spirit is sanctifying us, all according to the word and will of God.
Men who have been given new eyes and new ears to see and hear the truth of the Gospel understand this, and they are confident in Christ's sacrifice on the cross on their behalf. Read Hebrews 10.
Pray for those same eyes to see and ears to hear. If God so wills, you, too, can know the comfort and security of all that Christ has promised His flock.
"Be not afraid; only believe." -- Mark 4:36
Keep reading those five words. God willing, you'll understand them. All good fruit flows from those five words.