What kind of words fall from your lips? Harsh words or encouraging and pleasant words? The way you respond with your words to evil is a HUGE determiner whether you are sending out blessings or curses.
Romans 12:14 says we are to bless and not curse. When you are reprimanded, whether righteously or unrighteously, how do you respond? When you "talk"with your spouse, do your words reveal a heart that seeks to bless or curse?
Jesus, our Savior and model for life, said not a word of revilement when He was being beaten and hung on the cross.
You object, "I am not Jesus Christ!" No kidding! But, you are His child, I hope, and if so then His Spirit within you is transforming you. Earlier in Romans 12 Paul tells us to transform our minds by renewing ourselves in Christ. The Lord Jesus will enable you to do as He pleases. His commands should always give us hope, for that which He commands He empowers in us to do. Paul tells the Ephesians that Jesus' power has been granted to us (Ephesians 1:19).
To curse is to speak down, against, and in disbelief. To bless is to encourage, hope, and believe. Beloved, your blessing should be done in the heat of the moment, when you are most apt to lash out, that is the appropriate time to speak words that give life and not damnations! Begin now to think about your words. Meditate upon those passages that bring grace to our words: James 3:1-12; Ephesians 4:29.