8175. 'Jehovah will fight for you' means that the Lord alone endures the conflicts brought by temptations. This is clear from the meaning of 'fighting for you', when it refers to what Jehovah does in temptations, as enduring alone the conflicts brought by temptations, 'Jehovah' being the Lord, see just above in 8172. The reason why the Lord alone endures the conflicts brought by temptations and is conqueror is that the Divine alone can conquer the hells. If the Divine did not counteract them they would rush in like a mighty ocean, one hell after another; and man is utterly powerless to resist them, all the more so since a person's selfhood is nothing but evil, and so is a hell from which the Lord drags him out then, and after that holds him back, see what has been stated in 1581, 1661, 1692, 6574.

1692. What temptations, or the conflicts that constitute temptations, accomplish, scarcely anyone is able to know. They are the means by which evils and falsities are broken up and dispersed. They are also the means by which an abhorrence of these is produced, and a conscience is not only given but also strengthened, and man is accordingly regenerated. This is the reason why those who are being regenerated are led into conflicts and undergo temptations and why those who do not experience them during their earthly life do so in the next life, provided they are such as can be regenerated. And it is for these reasons also that the Lord's Church is called 'militant'. The Lord alone however underwent from His own strength or power the most cruel conflicts that constitute temptations, for He was beset by all the hells and constantly overcame them.

[2] It is also the Lord alone who fights in the temptation-conflicts of those who do undergo these. Man by his own power can accomplish nothing in the slightest against evil or hellish spirits, for they are so closely linked to the hells that if one were vanquished another would rush to take his place, and so on for ever. They are like the sea pressing against every part of a dike. If the dike were to develop a split or crack the sea would never cease to pour through and flood the land until nothing was left standing. It would be like this with man if the Lord alone did not bear up against the conflicts experienced by man in temptations.