If you declare with your mouth, "Jesus is Lord," and believe in your heart that God raised him from the dead, you will be saved. (Romans 10:9 NIV)
Our words are powerful. How we use them reflects who we follow. Declaring "Jesus is Lord" does not stop at the moment we voice those three words. In fact, our success in declaring Jesus as Lord is determined by every word we speak.
With the tongue we praise our Lord and Father, and with it we curse human beings, who have been made in God's likeness. Out of the same mouth come praise and cursing. My brothers and sisters, this should not be. (James 3:9-10 NIV)
We show just how much Jesus is our Lord by our words. How do you use your words? Are they used to encourage people and build them up? Are your words a gift to those who hear (or read) them? Do you purposefully choose your words to Glorify God and build people up? Do you use your words to share God with others?
"Therefore everyone who confesses Me before men, I will also confess him before My Father who is in heaven. "But whoever denies Me before men, I will also deny him before My Father who is in heaven. (Matthew 10:32-33 NASB)
You see, confessing Jesus to other people is only a good thing if the rest of our words are a blessing. Inviting someone to Church or to follow Jesus will only confuse them if you just got done cussing them out. All our words are to be under the Lordship of Christ.
Through Jesus, therefore, let us continually offer to God a sacrifice of praise--the fruit of lips that openly profess his name. (Hebrews 13:15 NIV)