How do we know if we are in Christ?

John asserts that those truly in Christ will manifest their status through their conduct. In 1 John 2:5-6, it is said, 'He that saith he abideth in him ought himself also so to walk, even as he walked.' This is a call to embody the example set by Christ in our daily lives. The assurance of being in Christ is linked to one's lifestyle, characterized by a continual pursuit of holiness and love, which reflects the eternal union established by God’s choosing before the foundation of the world, a cornerstone in the Reformed faith.