The Heart of Fasting vs Outward Actions in Christian Discipline
Christian teaching emphasizes that the spiritual discipline of fasting should stem from an internal disposition focused on God rather than outward display [1, 3]. Jesus himself cautioned against hypocrisy in fasting, instructing his followers to fast in secret, "so that you are not seen by men to be fasting, but by your Father who is in secret" [1]. This contrasts with the practices of some religious leaders of his time, who would make their fasting evident to others [9].
The "heart" in biblical understanding refers to the core of a person's being, encompassing spiritual activity and all aspects of human life, including wisdom, purity, and righteousness [2]. Therefore, the heart of fasting implies an internal, sincere motivation. Fasting is not an end in itself but a means to dispose individuals for other duties, particularly prayer [5, 11]. It is intended to be "to God" [3].
The prophet Isaiah highlights that true fasting involves more than mere self-deprivation; it should lead to an awareness of injustice and a commitment to helping the needy [4, 7, 10]. Isaiah 58:6 describes the chosen fast as one that loosens "the bands of wickedness," takes off "heavy burdens," and lets "the oppressed go free" [4]. This perspective suggests that genuine fasting should prompt actions of justice and compassion, rather than being solely an act of personal asceticism [7].
While voluntary fasting can be a means to "kindle devotions" and separate oneself from worldly enjoyments to focus on prayer [8, 11], it is not considered an indispensable Christian obligation [11]. The New Testament indicates that fasting can accompany significant spiritual events, such as the ordination of ministers [3]. However, the emphasis remains on the spirit behind the action. John Gill, a Baptist-Reformed commentator, suggests that true fasting involves "abstinence from sin" and "the exercise of faith and hope in God," which can be accompanied by cheerfulness and a proper use of creation, rather than outward austerity [6].
Sources
- Matthew “so that you are not seen by men to be fasting, but by your Father who is in secret, and your Father, who sees in secret, will reward you. -- Matthew 6:18”
- Easton's Bible Dictionary “Easton's Bible Dictionary: Heart — According to the Bible, the heart is the centre not only of spiritual activity, but of all the operations of human life. "Heart" and "soul" are often used interchangeably (Deut. 6:5; 26:16; comp. Matt. 22:37; Mark 12:30, 33), but this is not generally the case. The heart is the "home of the personal life," and hence a man is designated, according to his heart, wise (1 Kings 3:12, etc.), pure (Ps. 24:4; Matt. 5:8, etc.), upright and righteous (Gen. 20:5, 6; Ps. 11:2; 78:72), pious and good (Luke 8:15), etc. In these and such passages the word "soul" could not ”
- Torrey's Topical Textbook “Torrey's Topical Textbook: Fasting — Spirit of, explained -- Isa 58:6,7. Not to be made a subject of display -- Mt 6:16-18. Should be to God -- Zec 7:5; Mt 6:18. For the chastening of the soul -- Ps 69:10. For the humbling of the soul -- Ps 35:13. Observed on occasions of Judgments of God. -- Joe 1:14; 2:12. Public calamities. -- 2Sa 1:12. Afflictions of the Church. -- Lu 5:33-35. Afflictions of others. -- Ps 35:13; Da 6:18. Private afflictions. -- 2Sa 12:16. Approaching danger. -- Es 4:16. Ordination of ministers. -- Ac 13:3; 14:23. Accompanied by Prayer. -- Ezr 8:23; Da 9:3. Confession of si”
- Isaiah “Isaiah 58:6 (Geneva1599) — Is not this the fasting, that I haue chosen, to loose the bandes of wickednes, to take off the heauie burdens, and to let the oppressed goe free, and that ye breake euery yoke?”
- Matthew (Nonconformist/Puritan) “Matthew Henry on Matthew 6:16: We are here cautioned against hypocrisy in fasting, as before in almsgiving, and in prayer. I. It is here supposed that religious fasting is a duty required of the disciples of Christ, when God, in his providence, calls to it, and when the case of their own souls upon any account requires it; when the bridegroom is taken away, then shall they fast, Mat 9:15. Fasting is here put last, because it is not so much a duty for its own sake, as a means to dispose us for other duties. Prayer comes in between almsgiving and fasting, as being the life and soul of both. Chri”
- Matthew (Baptist/Reformed) “John Gill on Matthew 6:17: But thou, when thou fastest,.... Christ allows of fasting, but what is of a quite different kind from that of the Jews; which lay not in an outward abstinence from food, and other conveniences of life, and refreshments of nature; but in an abstinence from sin, in acknowledgment and confession of it; and in the exercise of faith and hope in God, as a God pardoning iniquity, transgression and sin; wherefore cheerfulness, and a free use of the creatures, without an abuse of them, best became such persons. Anoint thine head, and wash thy face; directly contrary to the ”
- Isaiah (Protestant academic) “Tyndale House on Isaiah 58:6: 58:6-7 True fasting creates an awareness of injustice and oppression and prompts the practitioner to reach out to help the needy in their struggles (see 42:7; Matt 25:35-36; Jas 1:27).”
- 2 Corinthians (Presbyterian) “Jamieson, Fausset & Brown on 2 Corinthians 11:27: fastings--voluntary, in order to kindle devotions (Act 13:2-3; Act 14:23; Co1 9:27); for they are distinguished from "hunger and thirst," which were involuntary [GROTIUS]. However, see on Co2 6:5. The context refers solely to hardships, not to self-imposed devotional mortification. "Hunger and thirst" are not synonymous with "foodlessness" (as the Greek of "fasting" means), but are its consequences. cold . . . nakedness--"cold" resulting from "nakedness," or insufficient clothing, as the Greek often means: as "hunger and thirst" result from "”
- Matthew (Baptist/Reformed) “John Gill on Matthew 6:18: That thou appear not unto men to fast,.... Which is just the reverse of the hypocrites, the Scribes and Pharisees; and quite contrary to the customs of the Jews, who when they fasted, particularly on their noted fasts (l), "brought out the ark into the street of the city, and put burnt ashes upon it, and upon the head of the prince, and upon the head of the president of the sanhedrim, and every man upon his own head.'' All which was done, to be seen of men to fast; but Christ directs to such sorts of fasting, and which is to be done in such a manner, as only to b”
- Isaiah (Protestant academic) “Tyndale House on Isaiah 58:3: 58:3 Fasting should be a time of self-deprivation in order to focus on God and pleasing him (Lev 16:29; see Zech 7:5). However, these people were only interested in pleasing themselves and continuing in their sins.”
- Daniel (Presbyterian) “Jamieson, Fausset & Brown on Daniel 10:2: mourning--that is afflicting myself by fasting from "pleasant bread, flesh and wine" (Dan 10:3), as a sign of sorrow, not for its own sake. Compare Mat 9:14, "fast," answering to "mourn" (Dan 10:15). Compare Co1 8:8; Ti1 4:3, which prove that "fasting" is not an indispensable Christian obligation; but merely an outward expression of sorrow, and separation from ordinary worldly enjoyments, in order to give one's self to prayer (Act 13:2). Daniel's mourning was probably for his countrymen, who met with many obstructions to their building of the temple, f”