The Bible says that “out of the abundance of the heart the mouth speaketh” (Matthew 12:34). This means that the words proceeding out of our mouths originate in our hearts. When we speak bitter words, it is because there is bitterness within our hearts. David likened bitter words to arrows that pierce the flesh (Psalm 64:3). Our words ought to be “seasoned with salt” (Colossians 4:6); instead, we often allow our words to pierce through others. We tear people down rather than building them up. Why is this? Because we have a root of bitterness growing inside that finds its way from our hearts into and out of our mouths. Those who demean others generally do so because they are bitter. Attempts to justify this behaviour are fruitless because the Lord knows the root of the problem stems from our heart.
The believer is to allow no place for bitterness within his life. The book of Ephesians directly associates bitterness with the sins of wrath, anger, clamour, evil speaking, and malice. Each of these sins grieves the Spirit of God and ought to grieve the believer. As such, Christians are admonished to put away all bitterness. As bitterness shows itself in the depths of our hearts, we ought to immediately seek the Lord and plead for His help in removing it by its root. In a similar passage (Colossians 3:8), we are admonished to “put off” many of these other sins mentioned. Always keep in mind that bitterness does not edify the believer or those around him, nor does it glorify the Lord. Simply choose to obey God by putting away and putting off bitterness.
Salvation brings God's peace to His enemies by transforming them into His allies. However, “the peace of God” mentioned in today's passage involves a daily work in the believer's life. “Peace with God” remains an indissolvable bond, yet experiencing the daily “peace of God” entails an ongoing blessing that may be gained and lost. The “peace of God” comes through prayer and the Bible says this peace is beyond mortal comprehension. It truly comforts a believer’s heart and mind through Christ Jesus. This is why the Lord admonishes believers to “let the peace of God rule in” their hearts (Colossians 3:15). The saved will always be at peace with God, but each Christian must “let” the peace of God work effectually in him on a daily basis.
The New Testament sheds light on two types of peace: peace with God and the peace of God. Peace with God is “through” the Lord Jesus Christ (Romans 5:1; Colossians 1:20). According to today's passage, this “peace with God” is experienced only upon one’s justification at the moment of salvation. Trusting Christ's payment through His death, burial, and resurrection remains the only basis for grasping this peace. Before a man trusts in Christ, he is God's enemy (Romans 5:10), but after salvation, he has been gloriously reconciled to God through the work of God's Son. No man earns this peace and no man can lose this peace to again become God's enemy because this peace is an everlasting peace.
