It was not truth you posted in citing Isa 43:10 and concluding that verse shows that God chooses men to believe,I never give up truth. 2 Thess 2:13 teaches the same thing. Men were chosen to salvation through sanctification of the Spirit and belief of the truth.
It does no such thing
and 2Th 2:13 does not support you either
All that verse shows is God set the means by which men are saved which is belief in the truth and the sanctificationn of the Spirit
The verse says absolutely nothing at all about God choosing people to believe