Here are 6 Bible verses about expressing yourself from the Old and New Testaments of the Holy Bible (King James Version), sorted from most to least relevant.
Proverbs 31:8-9 KJV
Open thy mouth for the dumb in the cause of all such as are appointed to destruction. Open thy mouth, judge righteously, and plead the cause of the poor and needy.
Deuteronomy 26:7 KJV
And when we cried unto the LORD God of our fathers, the LORD heard our voice, and looked on our affliction, and our labour, and our oppression:
1 Thessalonians 5:16-19 KJV
Rejoice evermore. Pray without ceasing. In every thing give thanks: for this is the will of God in Christ Jesus concerning you. Quench not the Spirit.
John 8:32 KJV
And ye shall know the truth, and the truth shall make you free.
Matthew 21:12-14 KJV
And Jesus went into the temple of God, and cast out all them that sold and bought in the temple, and overthrew the tables of the moneychangers, and the seats of them that sold doves, And said unto them, It is written, My house shall be called the house of prayer; but ye have made it a den of thieves. And the blind and the lame came to him in the temple; and he healed them.
Psalms 19:14 KJV
Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer.