Jesus appealed to Christians in ancient Sardis: “Strengthen the things remaining that were ready to die,... continue mindful of how you have received and how you heard, and go on keeping it, and repent.
آنچه را یافته و شنیده‌ای ،‏ به یاد آر ؛‏ آن را نگاه دار و توبه کن .‏