JMNT(i)
15 For instance, if because of solid food (or: the effect of something eaten) your brother is continually made sad (made sorry, distressed or grieved), you are no longer continuing to walk about (= living your life) in accord with (or: down from and on the level of) Love (or: you are not yet habitually walking [your path] in participation with transcendent unity of unambiguous, uniting acceptance toward others). Do not, by your food (or: for your solid food), progressively destroy away (lose by ruining; bring to loss) that person over whom Christ died.
16 Do not cause your good thing (or: the excellence and virtue which pertain to you) to be slandered (defamed; insulted; blasphemed; vilified; have its light hindered),
17 for you see, God's kingdom (or: the reign-and-rule which is God; the expression, influence and activity of God’s sovereignty) is not (or: does not exist being) solid food and drink, but rather, fair and equitable dealing which brings justice and right relationship in the Way pointed out (being turned in the right direction; rightwisedness; also = covenant inclusion and participation), peace (and: harmony; = shalom) and joy (or: happiness; rejoicing) within set-apart Breath-effect (or: a dedicated spirit and sacred attitude; or: in [the] Holy Spirit).
18 You see the one continuously slaving for and in the Christ in this [realm, sphere or regard] [is; continues being] well-pleasing (well-satisfying; fully acceptable) to (or: in; by; with) God, and approved (after examination and testing) by people (or: among mankind).
19 Consequently, then, we are continuously pressing forward and pursuing the things pertaining to, belonging to and which are the peace [= shalom] and the things pertaining to, belonging to and which are the act of building a house, pertaining to [input] into one another (or: which [effect] edification [infusing] into each other).
20 Stop tearing down (dissolving; loosing down; demolishing) God's work for the sake of solid food (or: on account of the effect of what is eaten). Indeed, all things [are] clean (= ceremonially pure; [Aleph2 adds: to the clean ones]), but on the other hand, [it is] bad (harmful; unsound; base; wicked; evil; not as ought to be) for (or: to; in; with) the person who by habitually eating [experiences] an effect of [or causes] stumbling through it.
21 [It is] beautiful (fine; as it ought to be; profitable; ideal) not to eat meat (animal flesh), neither to drink wine, nor even that in which your brother habitually stumbles (strikes himself against [it]), or is being constantly snared, or is continually weak.