I Chronicles 1:12 Kabbalah

וְֽאֶת־פַּתְרֻסִ֞ים וְאֶת־כַּסְלֻחִ֗ים אֲשֶׁ֨ר יָצְא֥וּ מִשָּׁ֛ם פְּלִשְׁתִּ֖ים וְאֶת־כַּפְתֹּרִֽים׃ (ס)

and Pathrusim, and Casluhim—from whence came the Philistines—and Caphtorim.

Read kabbalistic (mystical) interpretation of I Chronicles 1:12: and classical mystical sources.