TULIP is the acronym summarizing the five points of Calvinist soteriology as defined against Arminianism at the Synod of Dort (1618–1619): Total depravity (human nature is entirely corrupted by sin — not that humans are as bad as they could be, but that every faculty is affected and no one can choose God without divine grace); Unconditional election (God chooses who will be saved without reference to any foreseen merit or faith); Limited atonement (Christ’s atoning work is specifically efficacious for the elect, not for all humanity — sometimes called ‘particular redemption’); Irresistible grace (those whom God has elected cannot finally resist his saving call); Perseverance of the saints (the elect will certainly persevere to final salvation — ‘once saved always saved’ in popular form). TULIP is Reformed/Calvinist orthodoxy; it is rejected by Lutherans (who accept Total Depravity but not Limited Atonement), Arminians, and most Pentecostals and Baptists.