This world seems to take pleasure in removing our confidence. For sure the devil seeks to bring us to doubt. This is what he has been doing since tempting Eve in the garden with, “Did God really say…?” (Gen 3:1). However, the word of God is powerful to bring us to be sure and certain of God’s power and His promises (Heb 11:1; 2 Pet 1:3-4). God’s word is same as it has always been, enduring and powerful word (Isa 40:6-8; 1Pet 1:23-25).
God’s word is powerful to change our minds from doubt and worry to confidence and assurance: Do not conform any longer to the pattern of this world, but be transformed by the renewing of your mind. Consequently, faith comes from hearing the message and the message is heard through the word of Christ. Faith is being sure of what we hope for and certain of what we do not see (Rom 12:2; 10:17; Heb 11:1).
Hearing the word of God transforms (changes) our minds, if we let it, and when we do it grows us into a body of believers that bring glory to God. All the things Paul encourages the churches in Rome to do manifests the confident assurance God’s word can produce in the lives of His people:
For by the grace given me I say to every one of you: Do not think of yourself more highly than you ought, but rather think of yourself with sober judgment, in accordance with the measure of faith God has given you. 4 Just as each of us has one body with many members, and these members do not all have the same function, 5 so in Christ we who are many form one body, and each member belongs to all the others. 6 We have different gifts, according to the grace given us. If a man’s gift is prophesying, let him use it in proportion to his faith. 7 If it is serving, let him serve; if it is teaching, let him teach; 8 if it is encouraging, let him encourage; if it is contributing to the needs of others, let him give generously; if it is leadership, let him govern diligently; if it is showing mercy, let him do it cheerfully (Rom 12:3-8 NIV).