'Mercy' in the Bible

The Lord has devoured; he has not shown mercy to all the dwellings of Jacob; he has broken down in his wrath the fortifications of the daughter of Judah; he has leveled to the ground, he has dishonored the kingdom and its commanders.

(Ayin) The Lord has done what he planned; he has fulfilled his promise that he threatened long ago: He has overthrown you without mercy and has enabled the enemy to gloat over you; he has exalted your adversaries' power.

(Sin/Shin) The young boys and old men lie dead on the ground in the streets. My young women and my young men have fallen by the sword. You killed them when you were angry; you slaughtered them without mercy.

It is because of the Lord’s lovingkindnesses that we are not consumed,Because His [tender] compassions never fail.

For if He causes grief,Then He will have compassionAccording to His abundant lovingkindness and tender mercy.

(Samek) You shrouded yourself with anger and then pursued us; you killed without mercy.

The presence of Yahweh has scattered them, he will no longer watch over them; {they did not honor the priests}, they did not show mercy [to] elders.