What is The puritans believed that god has chosen certain people to go to heaven. what is this belief known as?

The belief that God has chosen certain individuals for salvation is known as "predestination." This doctrine is a central tenet of Puritan theology, emphasizing that salvation is determined by God's will and not by individual actions or merits. Puritans believed that the "elect" were predestined to enter heaven, which instilled a sense of both assurance and anxiety about one's spiritual state among believers.