Hi Alex,
2Th 2:11 And for this reason God will send them strong delusion, that they should believe the lie,
delusion
G4106
planē - objectively fraudulence; subjectively a straying from orthodoxy or piety: - deceit, to deceive, delusion, error.
1Cor 14:33 For God is not the author of confusion but of peace, as in all the churches of the saints.
confusion
G181
akatastasia - instability, that is, disorder: - commotion, confusion, tumult.
confuse : to make mentally unclear or uncertain; also: jumble syn muddle, befuddle, addle, fluster
When you look at the meanings of the words they are not the same word. God caused them to be deceived or to believe an untruth. They are not confused in this state of deception, most are very clear in their beliefs. All mankind are deceived. It is only by receiving the Holy Spirit that this deception is removed.
Rev 18:23 for by your sorcery all the nations were deceived.
Tit 3:3 For we ourselves were also once foolish, disobedient, deceived, serving various lusts and pleasures, living in malice and envy, hateful and hating one another.
v. 4 But when the kindness and the love of God our Savior toward man appeared,
v. 5 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,
v. 6 whom He poured out on us abundantly through Jesus Christ our Savior,
mercy, peace and love
Kat