How can I tell if I'm built upon the foundation of the apostles and prophets?

To ascertain if one is built upon the foundation of the apostles and prophets, it is essential to evaluate whether Christ is the core of one's faith. Ephesians 2:20-21 indicates that believers derive their life and purpose from being interconnected with Him. If Christ is your sole source of righteousness, wisdom, holiness, and salvation, then you are aligned with this foundation. Moreover, a true believer recognizes that their faith is not about moral achievements but an abiding relationship with Christ, who holds and sustains them. Signs of such faith include spiritual growth in understanding His teachings and a vibrant communion with Him through prayer and fellowship. Thus, it is a matter of heart and belief, stemming from one's trust in Christ as the foundation.