Huh? It is Christian doctrine. And it does NOT NOT NOT come from the bible as so many wrongly assert. That fragmentary, partial, incomplete book known as the bible contains perhaps 1% max of what our Lord taught. It refers to the Church and the long-standing tradition of the Apostles.
Rather, Christ taught and the Holy Spirit lead the Apostles into all truth. There was no New Testament. Then, by divine command, the Apostles handed their teaching on. A tiny fraction was written. The bible tell us this, but only if you actually read it paying attention.
Yes, predestination is true. What is utterly, completely, horribly false is the European, man-made invention of “Double predestination” which is not biblical in any sense. It tells of a ‘god’ who creates only to destroy in hell. Utterly false, if not blasphemous. God desires the salvation of all. That puts the utter and complete lie to Calvin et al. Such an arbitrary and capricious god might send you to hell on a goof.
1 Predestination = good.
2. “Double-predestination” = very very wrong and anti-biblical.