A basic definition of communication involves making things common. When we speak to others, we express what is in our minds and hearts making those thoughts common with others. The Bible warns the believer in Ephesians 4:29 to “Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.” The words that come out of our mouths should edify or build up others, not demean and degrade them. They should be strengthened by what we say. Keep in mind that corrupt communications weaken the believer (1 Corinthians 15:33). This is why Christians are instructed to put off all “filthy communication” (Colossians 3:8).
Our verbal communications involve the words that spring forth from our mouths. No doubt, the Lord considers these communications important and we should too. In today’s passage, the Lord gave some specific insights concerning His expectations of our communication. First, He wants our communication to be short and to the point – “let your communication be, Yea, yea; Nay, nay” (Matthew 5:37; see also Proverbs 10:19; Ecclesiastes 5:3, 7). Second, our word should be validated without the necessity of certifying it with vows, oaths, and swearing. In the context of the passage, the Lord Jesus forbade swearing “by heaven” (Matthew 5:34), “by the earth” (Matthew 5:35), or “by thy head” (Matthew 5:36). When we swear by these things, we put ourselves in danger of condemnation (James 5:12). Let your nay be nay and your yea be yea!
The Bible has much to say about the tongue or the words man speaks. The tongue of man is a deadly weapon (James 3:5-8). As such, the scripture likens it to a bow that is bent; only the arrows are the expressed lies (Jeremiah 9:3). A similar thought is found in Psalm 64:3 where David said of the wicked that they “whet their tongue like a sword, and bend their bows to shoot their arrows, even bitter words.” Unfortunately, even Christians sometimes make light of how deadly words can be. The old saying, “sticks and stones may break my bones, but words will never hurt me,” may sound quaint; but it is far from the truth. Words do cause wounds. The Bible likens lies to arrows that are shot out of a bow. Relating the lies to the arrows is certainly meant to convey the pain caused by the lying. Lies often do bring hurt; sometimes not physically, but in some form or another lies wound others.
