But your iniquities - That is, the sins which the prophet had specified in the previous chapter, and which he proceeds further to specify in this.

Have separated - The word used here (בדל bâdal) conveys the idea of division, usually by a curtain or a wall Exodus 26:33; Ezekiel 42:20. Thus the 'firmament' (רקיע râqı̂ya‛, "expanse") is said to have "divided" or "separated" (מבדיל mabedı̂yl) the waters from the waters Genesis 1:6. The idea here is, that their sins were like a partition between them and God, so that there was no contact between them and him.

And your sins have hid his face from you - Margin, 'Made him hide.' The Hebrew word here is in Hiphil, meaning 'to cause to hide.' Kimchi and Aben Ezra understand it as causing him to hide his face; Vitringa as hiding, his face. The metaphor, says Vitringa, is not taken from a man who turns away his face from one because he does not choose to attend to what is said, but from something which comes between two persons, like a dense cloud, which hides one from the other. And, according to this, the idea is, that their sins had risen up like a thick, dark cloud between them and God, so that they had no clear view of him, and no contact with him - as a cloud hides the face of the sun from us. A similar idea occurs in Lamentations 3:44 :

Thou hast covered thyself with a cloud,

That our prayers should not pass through.

But it seems to me more probable that the Hiphil signification of the verb is here to be retained, and that the idea is, that their sins had caused Yahweh to hide or turn away his face from their prayers from an unwillingness to hear them when they were so deeply immersed in sin. Thus the Septuagint, 'On account of your sins he has turned away his face (ἀπέστρεψε τὸ πρόωπον apestrepse to prosōpon) from you, so that he will not have mercy' (τοῦ μὴ ἐλεῆσαι tou mē eleēsai). It is universally true that indulgence in sin causes God to turn away his face, and to witchold mercy and compassion. He cannot pardon those who indulge in transgression, and who are unwilling to abandon the ways of sin (compare the notes at Isaiah 1:15).

His face - For פנים panim, faces, I read panaiv, his face. So the Syriac, Septuagint, Alexandrian, Arabic, and Vulgate. פני panai, MS. Forte legendum פני panai, nam מ mem, sequitur, et loquitur Deus; confer cap. Isaiah 58:14. "We should perhaps read פני panai; for מ mem follows, and God is the speaker." - Secker. I rather think that the speech of God was closed with the last chapter, and that this chapter is delivered in the person of the prophet. - L.

Like a partition wall dividing between them, so that they enjoy no communion with him in his worship and ordinances; which is greatly the case of the reformed churches: they profess the true God, and the worship of him, and do attend the outward ordinances of it; but this is done in such a cold formal way, and such sins and wickedness are perpetrated and connived at, that the Lord does not grant his gracious presence to them, but stands at a distance from them:

and your sins have hid his face from you, that he will not hear; or have caused him to hide himself; withdraw his gracious presence; neglect the prayers put up to him; deny an answer to them; or, however, not appear as yet for the deliverance and salvation of them, and bringing them into a more comfortable, prosperous, and happy condition.

But your iniquities have separated between you and your God, and your sins have hid his face from you, that he will not hear.

have hid: or, have made him hide

2. hid-Hebrew, "caused Him to hide" (La 3:44).

59:1-8 If our prayers are not answered, and the salvation we wait for is not wrought for us, it is not because God is weary of hearing prayer, but because we are weary of praying. See here sin in true colours, exceedingly sinful; and see sin in its consequences, exceedingly hurtful, separating from God, and so separating us, not only from all good, but to all evil. Yet numbers feed, to their own destruction, on infidel and wicked systems. Nor can their skill or craft, in devising schemes, as the spider weaves its web, deliver or save them. No schemes of self-wrought salvation shall avail those who despise the Redeemer's robe of righteousness. Every man who is destitute of the Spirit of Christ, runs swiftly to evil of some sort; but those regardless of Divine truth and justice, are strangers to peace.