כִּֽי־אָ֭מַרְתִּי פֶּן־יִשְׂמְחוּ־לִ֑י בְּמ֥וֹט רַ֝גְלִ֗י עָלַ֥י הִגְדִּֽילוּ׃
Sapagkat aking sinabi: “Baka sila'y magalak dahil sa akin; kapag dumulas ang aking paa, sila'y nagmamataas laban sa akin.”
Rashi
For I said, “Lest they rejoice over me” For this reason we remain silent, because we say to ourselves, “If we answer them brazenly, they may witness our downfall and rejoice over us when our feet falter, and they will magnify themselves over us saying, ‘Weren’t you boasting of your salvation?’”