The person who talks to us the most is ourselves. The estimates vary from study to study but our internal dialog impacts us greatly One pastor said that the greatest thing we can do is to quit listening to our inner dialog and to speak truth to our hearts. As a man thinks so is he. What we tell ourselves day in and day out is best framed by the Gospel of Jesus Christ. We need to preach truth to our hearts if we want to be transformed into the likeness of the Savior.
There is much power in words. Proverbs 18:21 states: "Death and life are in the power of the tongue, And those who love it will eat its fruit." We must fight to preach biblical truths instead of the flesh or the world system. Words don't create a reality but they do have consequences which at times can be severe. We can either use our tongues to build up others or tear them down. We can encourage or discourage them. We can affirm or condemn them. We do the same inside our own heads. We are called to be good stewards of our speech.
Matthew 12: 36 is sobering: "But I tell you that every careless word that people speak, they shall give an accounting for it in the day of judgment." Our words have eternal significance. We must battle daily against negative and unbiblical speech. Not only what we speak out loud but also what we think internally. Meditation and memorization are two ways to better ensure that what you say lines up with what God says. May we all strive to use our words in ways that please the Lord.