"Whoever confesses that Jesus is the Son of God, God abides in him, and he in God" (1Jn 4:15). What does it mean if you are "in the faith" (:5)? The preposition "in" grammatically can mean indicatng a belief such as with "the one who does not work, but believes in Him who justifies the ungodly, his faith is credited as righteousness" (Ro 4:5). Therefore "God abides in him" (1Jn 4:15) because he "believes in Him" (Ro 4:5). "We know that we abide in Him and He in us, because He has given us His Spirit" (1Jn 4:13). To abide means to stay or remain in a permanent relationship. Is "Christ is in you?" (2Co 13:5). The preposition "in" denotes a location or place. His teaching is based on "if indeed you have heard Him and have been taught in Him, just as truth is in Jesus" (Eph 4:21). "Let that abide in you which you heard from the beginning . . . [and] you also will abide in the Son and in the Father" (1Jn 2:24). "You know Him who has been from the beginning . . . [because] the word of God abides in you" (:14). We "abide in the teaching of Christ" (2Jn 1:9). Jesus expressed that "'My words abide in you'" (Jn 15:7) and that you "'abide in Me, and I in you'" (:4). "Just as it has taught you, you abide in Him" (1Jn 2:27). He has "given us understanding so that we may know Him who is true; and we are in Him who is true" (5:20). "After listening to the message of truth . . . having also believed, you were sealed in Him with the Holy Spirit of promise" (Eph 1:13). "The anointing which you received from Him abides in you . . . [and] His anointing teaches you about all things" (1Jn 2:27). "His seed abides in him . . . because he is born of God" (3:9). "In Him we live and move and exist" (Ac 17:28). "In Him you have been made complete" (Col 2:10). The anointing is from the "'Spirit of truth . . . [and] you know Him because He abides with you and will be in you'" (Jn 14:17). It is "for the sake of the truth which abides in us and will be with us forever" (2Jn 11:2). "The one who abides in the teaching, he has both the Father and the Son" (1:9).