חָלְק֤וּ ׀ מַחְמָאֹ֣ת פִּיו֮ וּֽקֲרָב־לִ֫בּ֥וֹ רַכּ֖וּ דְבָרָ֥יו מִשֶּׁ֗מֶן וְהֵ֣מָּה פְתִחֽוֹת׃
他口中的話比奶油更滑，心裡卻懷著爭戰；他的言語比油更柔，其實都是出鞘的刀劍。
Rashi
the gates Heb. פִּתְחֵי. As though it would say, בְּפִתְחֵי, into the gates. Comp. (Gen. 38:11) “Stay as a widow in your father’s house (בֵּית אָבִיךְ),” interpreted as בְּבֵית אָבִיךְ. Menachem ben Seruk (Machbereth Menachem p. 147) interpreted it as swords. Comp. (Psalms 55:22) “And they are drawn swords (פְּתִיחוֹת).”