John 5:18

“Therefore the Jews sought the more to kill him, etc.] They were the more desirous to take away his life, and were more bent and resolute upon it, and studied all ways and means how to bring it about; because he had not only broken the sabbath; as they imagined; for he had not really broken it: and if they had known what that means, that God will have mercy, and not sacrifice, they would have been convinced that he had not broke it by this act of mercy to a poor distressed object: but said also that God was his Father; his own Father, his proper Father, his Father by nature, and that he was his own Son by nature; and this they gathered from his calling him “my Father”, and assuming a…”

“God was his Father--literally, "His own [or peculiar] Father," (as in Rom 8:32). The addition is their own, but a very proper one. making himself equal with God--rightly gathering this to be His meaning, not from the mere words "My Father," but from His claim of right to act as His Father did in the like high sphere, and by the same law of ceaseless activity in that sphere. And as, instead of instantly disclaiming any such meaning--as He must have done if it was false--He positively sets His seal to it in the following verses, merely explaining how consistent such claim was with the prerogatives of His Father, it is beyond all doubt that we have here an assumption of peculiar personal…”

“The more to kill him - The answer of Jesus was suited greatly to irritate them. He did not deny what he had done, but he “added” to that what he well knew would highly offend them. That he should claim the right of dispensing with the law, and affirm that, in regard to its observance, he was in the same condition with God, was eminently suited to enrage them, and he doubtless knew that it might endanger his life. We may learn from his answer: 1.That we are not to keep back truth because it may endanger us. 2.That we are not to keep back truth because it will irritate and enrage sinners. The fault is not in the “truth,” but in the “sinner.” 3.That when any one portion of truth enrages…”

“His own Father - The Greek word means his own Father in such a sense as no creature can speak. Making himself equal with God - It is evident all the hearers so understood him, and that our Lord never contradicted, but confirmed it. John 5:19”

“the Jews: Joh 7:19 broken: Joh 7:22, Joh 7:23; Mat 12:5 God was: Joh 5:23, Joh 8:54, Joh 8:58, Joh 10:30, Joh 10:33, Joh 14:9, Joh 14:23; Zac 13:7; Phi 2:6; Rev 21:22, Rev 21:23; Rev 22:1, Rev 22:3 John 5:19”