Murmuring is a grievous sin harmful to everyone involved or impacted. When God’s people murmur, they do so because their heart is not sufficiently focused upon the Lord. Various forms of the word murmur occur forty times in the word of God. Interestingly, the number forty throughout scripture is frequently connected to a time of testing or trial. The vast majority of these occurrences reflect people who were displeased with something the Lord was responsible for doing. Their displeasure with the Lord caused them to voice their frustrations to others. Murmuring generally manifests itself outwardly, but at its root is a heart problem (Matthew 12:34; Matthew 15:19). It comes as no surprise that the medical community uses the term murmur to describe a heart problem.
The Pharisees repeatedly sought to trap the Lord by attempting to draw Him into controversial discussions. Today's passage demonstrates much more than a simple response to entangling questioning. Interestingly, we learn from the Lord's response that God's law made allowances for man based upon God's understanding of man’s nature. In other words, the Lord Jesus indicated that God gave some of the law simply because of the hardness of man’s heart! Unfortunately, these laws are used today by men to justify decisions contrary to God's will thus further validating the hard-hearted nature of man. In either case, God's ways are never thwarted. God's laws allow even man's wickedness to bring about God's justice and His laws further expose the inherent shortcomings of man. God graciously gave some of His laws to make allowances for man's weaknesses caused by sin.
The Bible admonishes believers to be stedfast and unmoveable (1 Corinthians 15:58). We are to be grounded and settled (Colossians 1:23) in the faith—much like a tree planted by the rivers of waters (Psalm 1:3). Yet, today's passage points to the dangers of a hardened heart set in rebellion. It is likened to a stone and a millstone. We should remain stedfast in our commitment to serve the Lord, yet our hearts should remain tender and pliable to Him and His will. A stony heart hinders the seed of God’s word from taking root (Matthew 13:5-6). This hardness hinders the possibility of spiritual fruit from taking root and maturing. A soft heart and a stedfast walk exhibit the godly balance that God desires for each of us.
