He addeth rebellion unto his sin - An ill-natured, cruel, and unfounded assertion, borne out by nothing which Job had ever said or intended; and indeed, more severe than the most inveterate of his friends (so called) had ever spoken. Mr. Good makes this virulent conclusion still more virulent and uncharitable, by translating thus: -

"For he would add to his transgressions apostasy;

He would clap his hands in the midst of us:

Yea, he would tempest his words up to God."

There was no need of adding a caustic here; the words in the tamest translation are tart enough. Though Elihu began well and tolerantly, he soon got into the spirit, and under the mistake, of those who had preceded him in this "tempest of words."

On Job 34:30 I have referred to the case of Hegiage, governor of the Babylonian Irak, under the caliph Abdul Malec. When Hegiage was informed that the people were in a state of mutiny because of his oppressive government, before they broke out into open acts of hostility, he mounted on an eminence, and thus harangued them: - "God has given me dominion over you; if I exercise it with severity, think not that by putting me to death your condition will be mended. From the manner in which you live you must be always ill-treated, for God has many executors of his justice; and when I am dead he will send you another, who will probably execute his orders against you with more rigour. Do you wish your prince to be moderate and merciful? Then exercise righteousness, and be obedient to the laws. Consider that your own conduct is the cause of the good or evil treatment which you receive from him. A prince may be compared to a mirror; all that you see in him is the reflection of the objects which you present before him." The people immediately dropped their weapons, and quietly returned to their respective avocations. This man was one of the most valiant, eloquent, and cruel rulers of his time; he lived towards the close of the 7th century of the Christian era. He is said to have put to death 120,000 people; and to have had 50,000 in his prisons at the time of his decease. Yet this man was capable of generous actions. The following anecdote is given by the celebrated Persian poet Jami, in his Baharistan: - Hegiage, having been separated from his attendants one day in the chase, came to a place where he found an Arab feeding his camels. The camels starting at his sudden approach, the Arab lifted up his head, and seeing a man splendidly arrayed, became incensed, and said, Who is this who with his fine clothes comes into the desert to frighten my camels? The curse of Good light upon him! The governor, approaching the Arab, saluted him very civilly, with the salaam, Peace be unto thee! The Arab, far from returning the salutation, said, I wish thee neither peace, nor any other blessing of God. Hegiage, without seeming to heed what he had said, asked him very civilly "to give him a little water to drink." The Arab in a surly tone, answered, If thou desirest to drink, take the pains to alight, and draw for thyself; for I am neither thy companion nor thy slave. The governor accordingly alighted, and having drank, asked the Arab, "Whom dost thou think the greatest and most excellent of men?" The prophet sent by God, said the Arab, and thou mayest burst with spleen. "And what thinkest thou of Aaly?" returned Hegiage. No tongue can declare his excellence, said the Arab. "What," asked Hegiage, "is thy opinion of the caliph Abdul Malec?" I believe him to be a very bad prince, replied the Arab. "For what reason?" said Hegiage. Because, said the Arab, he hath sent us for governor the most execrable wretch under heaven. Hegiage, finding himself thus characterized, was silent; but his attendants coming up, he rejoined them, and ordered them to bring the Arab with them. The next day Hegiage ordered him to be set at table with himself, and bade him "eat freely." The Arab, ere he tasted, said his usual grace, "God grant that the end of this repast may be no worse than the beginning!" While at meat the governor asked him, "Dost thou recollect the discourse we had together yesterday?" The Arab replied, God prosper thee in all things! but as to the secret of yesterday, take heed that thou disclose it not to-day. "I will not," said Hegiage; "but thou must choose one of these two things; either acknowledge me for thy master, and I will retain thee about my person; or else I will send thee to Abdul Malec, and tell him what thou hast said of him." There is a third course, replied the Arab, preferable to those two. "Well, what is that?" said the governor. Why, send me back to the desert, and pray God that we may never see each other's face again. Cruel and vindictive as Hegiage was, he could not help being pleased with the frankness and courage of the man; and not only forgave him the preceding insults but ordered him 10,000 pieces of silver, and sent him back to the desert, according to his wish.

rebellion

1 Samuel 15:23 For rebellion is as the sin of witchcraft, and stubbornness is as iniquity and idolatry. Because you have rejected the word of the LORD...

Isaiah 1:19,20 If you be willing and obedient, you shall eat the good of the land...

he clappeth

Job 27:23 Men shall clap their hands at him, and shall hiss him out of his place.

multiplieth

Job 8:2,3 How long will you speak these things? and how long shall the words of your mouth be like a strong wind...

Job 11:2,3 Should not the multitude of words be answered? and should a man full of talk be justified...

Job 35:2,3,16 Think you this to be right, that you said, My righteousness is more than God's...

Job 42:7 And it was so, that after the LORD had spoken these words to Job, the LORD said to Eliphaz the Temanite, My wrath is kindled against you...

Covenanting Confers Obligation.
As it has been shown that all duty, and that alone, ought to be vowed to God in covenant, it is manifest that what is lawfully engaged to in swearing by the name of God is enjoined in the moral law, and, because of the authority of that law, ought to be performed as a duty. But it is now to be proved that what is promised to God by vow or oath, ought to be performed also because of the act of Covenanting. The performance of that exercise is commanded, and the same law which enjoins that the duties …
John Cunningham—The Ordinance of Covenanting

Whether a Sin is Aggravated by Reason of the Condition of the Person against whom it is Committed?
Objection 1: It would seem that sin is not aggravated by reason of the condition of the person against whom it is committed. For if this were the case a sin would be aggravated chiefly by being committed against a just and holy man. But this does not aggravate a sin: because a virtuous man who bears a wrong with equanimity is less harmed by the wrong done him, than others, who, through being scandalized, are also hurt inwardly. Therefore the condition of the person against whom a sin is committed …
Saint Thomas Aquinas—Summa Theologica

Whether Predestination is Certain?
Objection 1: It seems that predestination is not certain. Because on the words "Hold fast that which thou hast, that no one take thy crown," (Rev 3:11), Augustine says (De Corr. et Grat. 15): "Another will not receive, unless this one were to lose it." Hence the crown which is the effect of predestination can be both acquired and lost. Therefore predestination cannot be certain. Objection 2: Further, granted what is possible, nothing impossible follows. But it is possible that one predestined---e.g. …
Saint Thomas Aquinas—Summa Theologica