Now the Bible instructs us to guard our heart because the mouth eventually speaks what is in the heart and the power of life and death is in the power of the tongue.
Jesus said, by our words we will be justified or by our words we will be condemned.
Matthew 12:35-37 A good person produces good things from the treasury of a good heart, and an evil person produces evil things from the treasury of an evil heart. 36 And I tell you this, you must give an account on judgment day for every idle word you speak. 37 The words you say will either acquit you or condemn you.” (New Living Translation of the Bible)
God is going to use our own words to grant clemency or convict us because it is in the unguarded moments of life when we consistently reveal our heart. It is during the unguarded moments that we reveal who we are and upon whom we are trusting.
The human heart is deceitful (Jeremiah 17:9). It knows how to manipulate through flattery or fear.
Someone once said, We are like tea bags; we don't know what is in us until you put us in hot water. It is during those hot water moments of life that all pretense is stripped away and we say what is in our heart. Often times we are shocked by what comes out.
How many times have I let the toothpaste out of the tube and immediately regretted my words. We usually retort with, "I didn't mean to say that." More accurate might be: "I didn't mean to say it out loud.
That's why I need a Savior. I am constantly blowing it and find that my heart needs continual cleansing. I need grace's forgiveness to expunge my words from the record and grace's mercy to help me deal with the consequences of my words.
If not filtered through Christ, those moments will be revealed at the heavenly tribunal to convince us of our own guilt.
Rather may our hearts be changed and our words be the basis for Jesus confessing us before the Father.
1 John 1:9 But if we confess our sins to him, he is faithful and just to forgive us our sins and to cleanse us from all wickedness.