This verse is better taken as one sentence, and translated, as Nowack, "He that shutteth his eyes in order to contrive froward things, he that compresseth his lips, hath already brought evil to pass;" he has virtually effected it.
From such a crafty, malignant man you need not expect any more open tokens of his intentions. He shutteth his eyes (comp. Isaiah 33:15); either that he may better think out his evil plans, or else he cannot look his neighbour in the face while he is plotting against him.
The Vulgate has, attonitis oculis; Septuagint, "fixing ( στηρίζων) his eyes." Moving his lips; rather, he who compresseth his lips, to hide the malignant smile with which he might greet his neighbour's calamity (comp.
Proverbs 6:13, etc.; Proverbs 10:10), or that neither by word nor expression he may betray his thoughts. Others take the two outward expressions mentioned as signals to confederates; but this is not so suitable, as they are the man's own feelings and sentiments that are meant.
One who gives these tokens bringeth evil to pass; he has perfected his designs, and deems them as good as accomplished, and you will do well to note what his bearing signifies. Some take the meaning to be, brings punishment on himself; but the warning is not given for the sinner's sake.
Septuagint, "He defines ( ὀρίζει) all evils with his lips; he is a furnace of evil."