Will he delight himself in the Almighty? - A truly pious man will delight himself in the Almighty. His supreme happiness will be found in God. He has pleasure in the contemplation of his existence, his perfections, his law, and his government. Coverdale renders this, "Hath he such pleasure and delight in the Almighty that he dare alway call upon God?" The idea of Job is that a hypocrite has not his delight in the Almighty; and, therefore, his condition is not such as he would defend or choose. Job bad been charged with defending the character of the wicked and with maintaining that they were the objects of the divine favor. He now says that he maintained no such opinion. He was aware that the only real and solid happiness was to be found in God, and he knew that a hypocrite would not find delight there. This is true to the letter. A hypocrite has no real happiness in God. He sees nothing in the divine perfections to love; nothing in the divine plan affections. The hypocrite, therefore, is a miserable man. He professes to love what he does not love; tries to find pleasure in what his heart hates; mingles with a people with whom he has no sympathy, and joins in services of prayer and praise which are disgusting and irksome to his soul. The pious man rejoices that there is just such a God as Yahweh is. He sees nothing in him which he desires to be changed, and he has supreme delight in the contemplation of his perfections.
Will he always call upon God? - That is, he will not always call upon God. This is literally true. The hypocrite pray:
(1) when he makes a profession of religion;
(2) on some extraordinary occasion - as when a friend is sick, or when he feels that he himself is about to die, but he does not always maintain habits of prayer.
He suffers his business to break in upon his times for prayer; neglects secret devotion on the slightest pretence, and soon abandons it altogether. One of the best tests of character is the feeling with which we pray, and the habit which we have of calling on God. The man who loves secret prayer has one of the most certain evidences that he is a pious man; compare the notes at Job 20:5.

Will he delight himself in the Almighty?.... That is, the hypocrite; no, he will not; he may seem to delight in, him, but he does not truly and sincerely; not in him as the Almighty, or in his omnipotence, into whose hands it is a fearful thing to fall, and who is able to destroy soul and body in hell; nor his omniscience, who, searches and knows the hearts of all men, and the insincerity of the hypocrite, covert to men soever he is; nor in his holiness, which at heart he loves not; nor in his ways and worship, word, ordinances, and people, though he makes a show of it, Isaiah 58:2;
will he always call upon God? God only is to be called upon, and it becomes all men to call upon him for all blessings, temporal and spiritual; and this should be done in faith, with fervency, in sincerity and uprightness of soul, and with constancy, always, at all times both of prosperity and adversity; but an hypocrite does not, and cannot call upon God in a sincere and spiritual manner; nor is he constant in this work, only by fits and starts, when it is for his worldly interest and external honour so to do. Now Job was one that delighted in God, was uneasy at his absence, longed for communion with him, sought earnestly after him, frequently and constantly called upon him, though he was wrongly charged with casting off the fear of God, and restraining prayer before him, and therefore no hypocrite. Some understand (f) all this as affirmed of the hypocrite, setting forth his present seeming state of happiness; as that he has a hope of divine favour, and of eternal felicity; has much peace and tranquillity of mind in life, and at death; is heard of God when trouble comes, and so gets out of it, and enjoys great prosperity; professes much delight and pleasure in God, and his ways, and is a constant caller upon him, and keeps close to the external duties of religion; and yet, notwithstanding all this, is in the issue, when death comes, exceeding miserable, as the following part of the chapter shows.
(f) Schultens.

Alluding to Job 22:26.
always call--He may do so in times of prosperity in order to be thought religious. But he will not, as I do, call on God in calamities verging on death. Therefore I cannot be a "hypocrite" (Job 19:25; Job 20:5; Psalm 62:8).

Delight - When he has nothing else to delight in? No: his delight is in the things of the world, which now sink under him. And those who do not delight in God, will not always, will not long, call upon him.