Matthew Poole's Concise Commentary
Isaiah 58:13
If thou turn away thy foot: this is taken either properly, i.e. If thou take no unnecessary journeys, or do any servile works, either of hand or foot, that are forbidden on the sabbath day, the instrument being here put for the work; or metaphorically, i.e. If thou keep thy mind and affections clear, and restrain thyself from whatever may profane it, as David did concerning the word, Psalms 119:101. Feet are often put for the affections, Ecclesiastes 5:1, because the mind is moved by the affections, as the body is by the feet; If we do not let our thoughts be extravagant either upon impertinencies or unlawful things. The sum is, If thou be careful not to break the sabbath. From the sabbath; or for the sabbath's sake, whether we understand it more largely, of the occasional sabbath in solemn humiliations or otherwise set apart for sacred services, which is called a sabbath, Leviticus 16:31, Leviticus 23:32. Days of this nature were set apart before the captivity, Isaiah 22:12 Jeremiah 36:9, and also in the captivity, Malachi 7:5. And thus it may be pertinent to the occasion of this discourse, Isaiah 58:3. And further, though sabbath be here only mentioned, yet it may take in every institution of God that they were in a capacity of observing during their captivity; thus I conceive it is understood Isaiah 56:1,2. Or whether we take it more particularly, for the weekly sabbath, such a carriage doth God expect as doth become it. From doing thy pleasure, satisfying thy lusts, and the corruption of thy will, on my holy day, i.e. on my sabbath, which is a holy day. A delight; full of delights in thy judgment, not looking on it as a burden; and practice, performing the duties of it with cheerfulness, delighting in the ordinances of it: and so the sabbath by a metonymy is put for the works of the sabbath, the time being put for the things that ought to be done in that time; therefore calling here is not only a verbal, but affectionate calling, the understanding assenting, the will consenting, and the actions conforming thereto: this delight appears in the saints of God, in their breathings after it, as it did frequently in David, Psalms 27:4, Psalms 36:8 42:1, with many more. The holy of the Lord; or to the Lord, i.e. dedicated to him, consecrated to his service. The Jews had a law that no man might take from the sabbath to add to the profane days but he might on the contrary. Honourable, viz. the chief of days; worthy of all honour, and therefore honourable, because holy; and so shall honour, either it, i.e. the day; or him, i.e. the Lord, whose day it is. For to sanctify God and to sanctify his day is all one; compare Isaiah 8:13, with Exodus 20:8; thus esteem it an honour as well as a pleasure. Not doing thine own ways, or works, or course of life; a man's whole course being described by a way or walk, Genesis 17:1 Ephesians 5:8. Nor speaking thine own words, viz. that are properly thine own, i.e. thine own in opposition to what God commands, proceeding from the corruption of nature, and vanity of the mind; or not speaking words, i.e. vainly, impertinently, and not suitable to the work of the day, tending neither to thy profit nor pleasure; or rather injurious, revengeful, or reproachful words, contrary to rest, quiet, and sedate composedness of the sabbath. And thus it refers to what was their usual practice upon their solemn assemblies or sabbaths towards their poor brethren, which they are charged with, Isaiah 58:3, and is called speaking vanity, Isaiah 58:9; see there; and accordingly the LXX. render it, if thou speak not a word in anger.