“Let that therefore abide in you, which ye have heard from the beginning. If that which ye have heard from the beginning shall remain in you, ye also shall continue in the Son, and in the Father.”
King James Version (KJV)
2:24 If that truth concerning the Father and the Son, which ye have heard from the beginning, abide fixed and rooted in you, ye also shall abide in that happy communion with the Son and the Father.
1Jo 2:24 Let that therefore abide in you. The truth concerning the Father and the Son which Anti-Christ denies. Ye also shall continue. He who remains steadfast in this faith will "continue in the Son, and in the Father".