He also shalt be my salvation - See the notes at Isaiah 12:2. Literally, "He is unto me for salvation," that is, "I put my trust in him, and he will save me. The opportunity of appearing before God, and of maintaining my cause in his presence, will result in my deliverance from the charges which are alleged against me. I shall be able there to show that I am not a hypocrite, and God will become my defender."
For an hypocrite shall not come before him - This seems to be a proverb, or a statement of a general and indisputable principle. Job admitted this to be true. Yet he expected to be able to vindicate himself before God, and this gould prove that he was not an hypocrite - on the general principle that a man who was permitted to stand before God and to obtain his favor, could not be an unrighteous man. To God he looked with confidence; and God, he had no doubt, would be his defender. This fact would prove that he could not be an hypocrite, as his friends maintained.

He also shall be my salvation - He will save me, because I trust in him.
A hypocrite - A wicked man shall never be able to stand before him. I am conscious of this, and were I, as you suppose, a secret sinner, I should not dare to make this appeal.

He also [shall be] my salvation: for an (f) hypocrite shall not come before him.
(f) By which he declares that he is not a hypocrite as they charged him.

He also shall be my salvation,.... Job, though he asserted the integrity of his heart and life, yet did not depend on his ways and works for salvation, but only on the Lord himself; this is to be understood not of temporal salvation, though God is the author of that, and it is only to be had of him, yet Job had no hope concerning that; but of spiritual and eternal salvation, which God the Father has contrived, determined, and resolved on, and sent his Son to effect; which Christ being sent is the author of by his obedience, sufferings, and death; and in him, and in his name alone, is salvation; and every soul, sensible of the insufficiency of himself and others to save him, will resolve, as Job here, that he, and he only, shall be his Saviour, who is an able, willing, and complete one; see Hosea 14:3; and the words are expressive of faith of interest in him. Job knew him to be his Saviour, and living Redeemer, and would acknowledge no other; but claim his interest in him, now and hereafter, and which was his greatest support under all his troubles; see Job 19:26;
for an hypocrite shall not come before him; a hypocrite may come into the house of God, and worship him externally, and seem to be very devout and religious; and he shall come before the tribunal of God, and stand at his bar, to be tried and judged; but he shall not continue in the presence of God, nor enjoy his favour, or he shall not be able to make his cause good before him; and indeed he does not care to have himself examined by him, nor shall he be saved everlastingly, but undergo the most severe punishment, Matthew 24:51. Job here either has respect to his friends, whom he censures as hypocrites, and retorts the charge upon they brought on him; or he has reference to that charge, and by this means clears himself of it, since there was nothing he was more desirous of than to refer his case to the decision of the omniscient God, and righteous Judge; which if he was an hypocrite he would never have done, since such can never stand so strict and severe an examination.

He--rather, "This also already speaks in my behalf (literally, 'for my saving acquittal') for an hypocrite would not wish to come before Him" (as I do) [UMBREIT]. (See last clause of Job 13:15).