From the Hebrew Bible, Isaiah 40:
https://biblehub.com/niv/isaiah/40.htm

Before YHWH all the goyim are as nothing; they are regarded by YHWH as worthless and less than nothing.

From the Jewish Torah, Deuteronomy 20:
https://biblehub.com/niv/deuteronomy/20.htm

When you march up to attack a city, make its people an offer of peace. If they accept and open their gates, all the people in it shall be subject to forced labor and shall work for you. If they refuse to make peace and they engage you in battle, lay siege to that city. When YHWH delivers it into your hand, put to the sword all the men in it. As for the women, the children, the livestock and everything else in the city, you may take these as plunder for yourselves. And you may use the plunder YHWH gives you from your enemies. This is how you are to treat all the cities that are at a distance from you and do not belong to the goyim nearby.

However, in the cities of the goyim YHWH gives over to you, do not leave alive anything that breathes.

https://en.wikipedia.org/wiki/Kitos_War

The Kitos War (115–117; Hebrew: מרד הגלויות, romanized: mered ha-galuyot, or מרד התפוצות mered ha-tfutzot; "rebellion of the diaspora" Latin: Tumultus Iudaicus) was one of the major Roman–Jewish wars (66–136). The rebellions erupted in 115, when most of the Roman armies were fighting Trajan's Parthian War on the eastern border of the Roman Empire. Major uprisings by Jews in Cyrenaica, Cyprus and Egypt spiralled out of control, resulting in a widespread slaughter of the remaining Roman garrisons and Roman citizens by Jewish rebels.

Cities with substantial Jewish populations joined the rebellion and slaughtered the remaining Roman garrisons and Roman citizens.

In Cyrenaica, the rebels were led by Lukuas or Andreas, who called himself "king", according to Eusebius of Caesarea. His group destroyed many temples, including those to Hecate, Jupiter, Apollo, Artemis and Isis, as well as the civil structures that were symbols of Rome, including the Caesareum, the basilica and the public baths.

The 4th-century Christian historian Orosius records that the violence so depopulated the province of Cyrenaica that new colonies had to be established by Hadrian:

Jews waged war on the inhabitants throughout Libya in the most savage fashion, and to such an extent was the country wasted that, its cultivators having been slain, its land would have remained utterly depopulated, had not the Emperor Hadrian gathered settlers from other places and sent them thither, for the inhabitants had been wiped out.

Dio Cassius states of Jewish insurrectionaries:

Meanwhile the Jews in the region of Cyrene had put one Andreas at their head and were destroying both the Romans and the Greeks. They would cook their flesh, make belts for themselves of their entrails, anoint themselves with their blood, and wear their skins for clothing. Many they sawed in two, from the head downwards. Others they would give to wild beasts and force still others to fight as gladiators. In all, consequently, two hundred and twenty thousand perished. In Egypt, also, they performed many similar deeds, and in Cyprus under the leadership of Artemio. There, likewise, two hundred and forty thousand perished. For this reason no Jew may set foot in that land, but even if one of them is driven upon the island by force of the wind, he is put to death. Various persons took part in subduing these Jews, one being Lusius, who was sent by Trajan.

Lusius Quietus, the conqueror of the Jews of Mesopotamia, was in command of the Roman army in Judea and laid siege to Lydda, where the rebel Jews had gathered under the leadership of Julian and Pappus. Lydda was conquered, and many of the rebellious Jews were executed. The "slain of Lydda" are often mentioned in words of reverential praise in the Jewish Talmud.