Treasury of Scripture Knowledge
Now, however, having come to know God--or rather to be known by Him--how is it you are again turning back to weak and worthless rudimentary notions to which you are once more willing to be enslaved?
Therefore suffer no one to sit in judgement on you as to eating or drinking or with regard to a festival, a new moon or a sabbath.
As one who lives in union with the Lord Jesus, I know and am certain that in its own nature no food is 'impure'; but if people regard any food as impure, to them it is.
1 Corinthians 8:7
But all believers do not recognize these facts. Some, from force of habit in relation to the idol, even now eat idol sacrifices as such, and their consciences, being but weak, are polluted.
1 John 3:19
And in this way we shall come to know that we are loyal to the truth, and shall satisfy our consciences in His presence
You scrupulously observe days and months, special seasons, and years.