6. Again, although there are slight allusions in some of the Prophets to "laws" and "statutes" and "commandments," their silence about, if not their absolute ignorance of, anything which resembles the Levitic legislation as a whole is a startling problem. Thus, even a late prophet like Jeremiah alludes, without a word of reprobation, to men cutting and making themselves bald for the dead (Jer. xvi. 6; comp. xli. 5) in a way which the Levitic law (Lev. xix. 28; Deut. xiv. 1) strenuously forbids. 7. Again, as is well known, there is a fundamental difference between the three codes as to the relative position of the priests and Levites. (i) In Exod. xix. 6 all Israel is regarded as "a kingdom of priests and an holy nation," and in Exod. xxiv. 5 the young men of the children of Israel "offer burnt offerings and sacrifice peace offerings." (ii) In Numb. iii. 44-51 the Levites are set aside for the service of the Tabernacle in place of the firstborn. But neither in "the Book of the Covenant" nor in Deuteronomy is there any _distinction_ between the services of the priests and the Levites. (iii) In Deut. x. 8 every Levite may become a priest. All priestly functions are open to the Levites, and the arrangements for the Levites are wholly different from those of Numbers. (iv) But in the Priestly Code only the sons of Aaron are to be priests (Numb. vi. 22-27, xviii. 1-7; Lev. i. 5, 8). The Levites are to minister to them in more or less menial functions, and are permitted a share in the tithes, but not (as in Deut. xviii. 1) in the firstfruits. We have first identity of priests and Levites, then partial, then absolute separation.[311] The earliest trace of this degradation of the Levites is propounded as something quite new in Ezek. xliv. 10-16, which distinctly implies (see verse 13) that up to that time the Levites had enjoyed full priestly rites.