1 John gives assurance of eternal life to those who believe in Christ (5:13). The book motivates readers to cultivate greater fellowship with God ("abide," "love"). It helps believers to understand standards for fellowship with an absolute God (1:7, 9). 2 John warns about stepping into the domain of false teachers. Abiding in truth is essential for brotherly love. 3 John warns against self-exaltation and self-assumption in leading the local church.