As recorded in Zechariah, the people of God came to the Lord desiring to know if they should continue weeping and fasting as they had done for many years. In response, the Lord asked the people if they ever really fasted UNTO Him. In other words, were they fasting for simply prideful reasons, to be seen of men, or really fasting unto the Lord? The motive of fasting is also addressed in Matthew chapter 6. Christians should never fast in order to please men or to draw praise and attention to themselves. Fasting should be a private matter between the believer and the Lord. The benefits gained by fasting are lost when the motives are improper or impure. Those behaving hypocritically will ensure that people know they are fasting, desiring the praise of men; whereas, the truly humble seek only to please the Lord.
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.