“I will make your pinnacles of rubies” (Isaiah 54:12)

God describes His Church as a beautiful fortress, made of living stones made righteous through faith in Christ. “You also, as living stones, are being built up a spiritual house, a holy priesthood, to offer up spiritual sacrifices acceptable to God through Jesus Christ” (1 Peter 2:5).

The Church is an impregnatable fortress because “ God is our refuge and strength, A very present help in trouble. Therefore we will not fear” (Psalms 46:1-2). “‘No weapon formed against you shall prosper, And every tongue which rises against you in judgment You shall condemn. This is the heritage of the servants of the LORD, And their righteousness is from Me,’ Says the LORD” (Isaiah 54:17).  
 
Christ said, “the gates of Hades shall not prevail against it” (Matthew 16:18). The apostle Paul said, “do you not know that you are the temple of God and that the Spirit of God dwells in you? If anyone defiles the temple of God, God will destroy him” (1 Corinthians 3:16-17).

No weapon formed against saints can prosper because they’re made righteous through faith in Christ. “He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him” (2 Corinthians 5:21). “Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ” (Romans 5:1).

And the best is yet to come… you have an “inheritance incorruptible and undefiled and that does not fade away, reserved in Heaven for you, who are kept by the power of God through faith for salvation ready to be revealed in the last time” (1 Peter 1:4-5).