Isaiah 54:17 - "No weapon that has been made to be used against you will succeed." We often neglect to read the rest of the verse. "You will have and answer for anyone who accuses you. This is the inheritance of the Lord's servants. Their victory comes from me," declares the Lord. Regardless of the attack the result remains the same. We will have security and victory over our enemies. Only in the Lord do we have righteousness and strength. We are granted glory and justification.
The next time you feel challenged, don't doubt God - that's a display of a mere lack of faith. Proverbs 30:5 say EVERY Word of God is true. Don't attack God's sovereign character. Instead, TRUST him, EVEN in the grey areas. Will a father deny his child? Then, why would God abandon his child who has an inheritance in heaven?