וַאֲנִ֤י ׀ בַּחֲלוֹתָ֡ם לְב֬וּשִׁי שָׂ֗ק עִנֵּ֣יתִי בַצּ֣וֹם נַפְשִׁ֑י וּ֝תְפִלָּתִ֗י עַל־חֵיקִ֥י תָשֽׁוּב׃
Mas, quanto a mim, estando eles enfermos, vestia-me de cilício, humilhava-me com o jejum, e orava de cabeça sobre o peito.
Rashi on Psalms
and may my prayer return upon my bosom That is to say: If they say that I afflicted myself only for their detriment, that their illness should become more serious, may my prayer that I prayed for them return to me.