doctrine: what the whole Bible teaches us today about a particular topic. • ST summarizes each doctrine as it should be understood and applied by present-day Christians. • Study ST so you obey the Great Commission (Matt. 28:19–20), overcome wrong ideas, make better decisions on new questions, and grow as Christians. • Study ST with prayer, humility, reason, help from others, by collecting and understanding all the relevant passages of Scripture on any topic, and with rejoicing and praise.