'Merciless' in the Bible

lest you give your honor to the others, and your years to the merciless,

‘All your lovers (allies) have forgotten you;They do not seek and long for you.For I have injured you with the wound of an enemy,With the punishment of a cruel and merciless foe,Because your guilt is greatAnd your sins are glaring and innumerable.

"This is what the sovereign Lord says: 'The Philistines have exacted merciless revenge, showing intense scorn in their effort to destroy Judah with unrelenting hostility.

And [because he] was angry, his master handed him over to the merciless jailers until he would repay everything that was owed.

without understanding, untrustworthy, unloving, unmerciful [without pity].

For judgment will be merciless to one who has shown no mercy; mercy triumphs over judgment.