2 Pet 3:17 "Ye therefore, beloved, seeing ye know these things before, beware lest ye also, being led away with the error of the wicked, fall from your own stedfastness."
2 Pet 1:10 "Wherefore the rather, brethren, give diligence to make your calling and election sure: for if ye do these things, ye shall never fall:"
James 5:12 "But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation."
Heb 6:4,5,6 "For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost, And have tasted the good word of God, and the powers of the world to come. If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame."
Heb 4:11 "Let us labour therefore to enter into that rest, lest any manfall after the same example of unbelief."
1 Tim 3:6,7 "Not a novice, lest being lifted up with pride hefall into the condemnation of the devil. Moreover he (a bishop) must have a good report of them which are without; lest he fall into reproach and the snare of the devil."
1 Cor 10:12 "Wherefore let him that thinketh he standeth take heed lest hefall."
Gal 5:4 "Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace."
Acts 1:25 "That he may take part of this ministry and apostleship, from which Judas by transgression fell, that he might go to his own place"
These verses all have to do with falling from salvation to condemnation. Logically, one that is ALWAYS fallen cannot fall.