17 If you 'go into training' inwardly, act normal outwardly. Shampoo and comb your hair, brush your teeth, wash your face. 18 God doesn't require attention-getting devices. He won't overlook what you are doing; he'll reward you well. A Life of God-Worship
Matthew Henry's Commentary on Matthew 6:17-18
Commentary on Matthew 6:16-18
(Read Matthew 6:16-18)
Religious fasting is a duty required of the disciples of Christ, but it is not so much a duty itself, as a means to dispose us for other duties. Fasting is the humbling of the soul, Psalm 35:13; that is the inside of the duty; let that, therefore, be thy principal care, and as to the outside of it, covet not to let it be seen. God sees in secret, and will reward openly.