Acts 21:21-26

They very judiciously advised Paul to adopt a procedure in connection with four Jewish brethren, who at that time had on them temporary Nazaritish vows, to fall in with them, becoming a Mosaic Nazarite for the time being [an institution peculiar to Jews only], thus rendering himself conspicuous before all the people for his literal observance of the Mosaic law. Here we have Paul's example, going unhesitatingly into religious ceremonies which were utterly null and void, merely to gratify the Jews, lest they might receive spiritual detriment by his example, illustrating the fact that while Paul preached to the Gentiles perfect spiritual freedom from ecclesiastical ritualism, when among the Jews he practiced it himself. These Apostolical decrees to the Gentiles (Acts 21:25) to abstain from idolatry, blood and fornication, have a purely spiritual signification, culminating in entire sanctification. We are cleansed from all unrighteousness by the blood of Christ, which is symbolized by all animal blood, hence our abstinence from it. The blood has a spiritual and not a physical signification. No one is free from idolatry in some form or other till sanctified wholly, while fornication is the only sin which breaks the marital covenant and forfeits the Bridehood of Christ. Hence its specification here. Nothing at all is said about baptism, the eucharist or any other ceremony. Hence you see the pure spirituality of gospel salvation, temporalities all incidental and optionary.