(16) But.--The psalm here turns to address a worse class, those who, while undisguisedly wicked, shelter themselves under the name of the covenant.

What hast thou to do?--i.e., how darest thou?

Verses 16-21. - While even the more godly among the Israelites have been thus, to a certain extent, reproved (vers. 8-14), the psalmist now addresses to the ungodly, the open and wilful transgressors, a far sterner rebuke. They claim the privileges of God's covenanted servants (ver. 16), but perform none of the duties (vers. 17-20), thus bringing down upon themselves a terrible menace. Verse 16. - But unto the wicked God saith, What hast thou to do to declare my statutes, or that thou shouldest take my covenant in thy mouth? The wicked assumed that they were true Israelites. They were familiar with the words of God's statutes, and with the terms of the covenant. They claimed the right of enforcing them against others (Romans 2:18-20), while in their own persons they set them at nought (vers. 18-20). God declares that they have no right to assume to be teachers of others until they have taught themselves - they are unfit even to "take his covenant in their mouth."

50:16-23 Hypocrisy is wickedness, which God will judge. And it is too common, for those who declare the Lord's statutes to others, to live in disobedience to them themselves. This delusion arises from the abuse of God's long-suffering, and a wilful mistake of his character and the intention of his gospel. The sins of sinners will be fully proved on them in the judgment of the great day. The day is coming when God will set their sins in order, sins of childhood and youth, of riper age and old age, to their everlasting shame and terror. Let those hitherto forgetful of God, given up to wickedness, or in any way negligent of salvation, consider their urgent danger. The patience of the Lord is very great. It is the more wonderful, because sinners make such ill use of it; but if they turn not, they shall be made to see their error when it is too late. Those that forget God, forget themselves; and it will never be right with them till they consider. Man's chief end is to glorify God: whoso offers praise, glorifies him, and his spiritual sacrifices shall be accepted. We must praise God, sacrifice praise, put it into the hands of the Priest, our Lord Jesus, who is also the altar: we must be fervent in spirit, praising the Lord. Let us thankfully accept God's mercy, and endeavour to glorify him in word and deed.But unto the wicked God saith,.... By whom are meant, not openly profane sinners; but men under a profession of religion, and indeed who were teachers of others, as appears from the following expostulation with them: the Scribes, Pharisees, and doctors among the Jews, are designed; and so Kimchi interprets it of their wise men, who learnt and taught the law, but did not act according to it. It seems as if the preceding verses respected the truly godly among the Jews, who believed in Christ, and yet were zealous of the law; and retained legal sacrifices; as such there were, Acts 21:20; and that these words, and what follow, are spoken to hypocrites among them, who sat in Moses's chair, and said, and did not; were outwardly righteous before men, but inwardly full of wickedness, destitute of the grace of God and righteousness of Christ;

what hast thou to do to declare my statutes; the laws of God, which were given to the people of Israel; some of which were of a moral, others of a ceremonial, and others of a judicial nature; and there were persons appointed to teach and explain these to the people, as the priests and Levites: now some of these were abrogated, and not to be declared at all in the times this psalm refers to; and as for others, those persons were very improper to teach and urge the observance of them, when they themselves did not keep them; and especially it was wrong in them to declare them to the people, for such purposes as they did, namely, to obtain life and righteousness by them;

or that thou shouldest take my covenant in thy mouth? which is to be understood, not of the covenant of works made with Adam, and now broke; nor of the pure covenant of grace, as administered under the Gospel dispensation, of which Christ is the Mediator, and the Gospel a transcript, since both were rejected by these persons; but the covenant at Mount Sinai, which was a typical one; and being in some sense faulty, was now antiquated, and ought to have ceased; and therefore these men are blamed for taking it in their mouths, and urging it on the people: and besides, they had no true sight of and faith in the thing exhibited by it; and moreover were not steadfast, nor did they continue in it, like their fathers before them, Psalm 78:37, Hebrews 8:7.