Eternal Security & Dispensationalism: Where do you get the idea that all Dispensationalists believe in "once saved, always saved"? License to Sin: No one in any denomination really says that you have a license to sin as much as you want even though they believe in once saved always saved. Once Saved, Always Saved & Calvinism: Is once saved, always saved a Calvinist position or is it a doctrine unto itself? Is it an actual doctrinal position of church creeds?