Here is part of what Gill has to say about the almightiness or omnipotence of God:
The power of God reaches to all things, and therefore is, with propriety, called Omnipotence; all things are possible with God, and nothing impossible; this is said by an angel, and confirmed by Christ, (Luke 1:37; Mark 14:36) what is impossible with men is possible with God; what cannot be done according to the nature of things, the laws, rules, and course of nature, may be done by the God of nature, who is above these, and not bound by them, and sometimes acts contrary to them; as when he stopped the sun in its course, in the times of Joshua; made iron to swim by the hands of the prophet Elisha; and suffered not fire to burn in the furnace of Nebuchadnezzar, so that the three persons cast into it were not hurt by it, nor their clothes so much as singed, nor the smell of fire upon them: whereas, it is the nature of the sun to go on in its course, without stopping, nor can any creature stop it; and for ponderous bodies, as iron, to sink in water; and for fire to burn. There are some things, indeed, which God cannot do, and which the Scriptures express as, that "he cannot deny himself", (2 Tim. 2:13) nor do anything that is contrary to his being, his honour and glory, or subversive of it; thus, for instance, he cannot make another God, that would be contrary to himself, to the unity of his Being, and the declaration of his Word; "Hear, O Israel, the Lord our God is one Lord", (Deut. 6:4) he cannot make a finite creature infinite; that would be to do the same, and there would be more infinites than one, which is a contradiction; he cannot raise a creature to such dignity as to have divine perfections ascribed to it, it has not, which would be a falsehood; or to have religious worship and adoration given it, which would be denying himself, detracting from his own glory, and giving it to another, when he only is to be served and worshipped: in such manner it is also said of him, that he "cannot lie", (Titus 1:2; Heb. 6:18) for this would be contrary to his truth and faithfulness; he can do nothing that is contrary to his attributes; he cannot commit iniquity, he neither will nor can do it; for that would be contrary to his holiness and righteousness; (see Job 34:10,12, 36:23) he cannot do anything that implies a contradiction; he cannot make contradictions true; a thing to be, and not to be at the same time; or make a thing not to have been that has been; he can make a thing not to be, which is, or has been; he can destroy his own works; but not make that not to have existed, which has existed; nor make an human body to be everywhere; nor accidents to subsist without subjects; with many other things which imply a manifest contradiction and falsehood: but then these are no prejudices to his omnipotence, nor proofs of weakness; they arise only out of the abundance and fulness of his power; who can neither do a weak thing nor a wicked thing, nor commit any falsehood; to do, or attempt to do, any such things, would be proofs of impotence, and not of omnipotence.