שִׁ֗יר הַֽמַּ֫עֲל֥וֹת אֶל־יְ֭הוָה בַּצָּרָ֣תָה לִּ֑י קָ֝רָ֗אתִי וַֽיַּעֲנֵֽנִי׃
Pieśń pielgrzymia. Do Boga w niedoli mojéj wołałem, a wysłuchał mnie.
Ibn Ezra
His deliverance (יְשׁוּעָתָה - yeshu'atah): [This form contains] two signs of the feminine gender [the linking Tav (ת) and the final Heh (ה)], used by way of elegance/poetic expression. Examples are 'eimatah' (אֵימָתָה - his terror) [as in (Exodus 15:16): "תִּפֹּל עֲלֵיהֶם אֵימָ֫תָה וָפַ֫חַד" - "Terror and dread fall upon them"] and 'ba-tzaratah' (בַּצָּרָתָה - his distress) [as in (Psalm 120:1): "אֶל־יְ֭הוָה בַּצָּרָ֣תָה לִּ֑י קָ֝רָ֗אתִי" - "To the LORD, in my distress, I called"]. And [regarding the syntax of the verse itself], [the verse] mentions concerning his [David's] soul [נַפְשִׁי - nafshi, a feminine noun] using the masculine pronoun 'lo' (לוֹ - for him), similar to [the construction in (Isaiah 32:6)]: 'l'harik nefesh ra'ev' (לְהָרִיק נֶפֶשׁ רָעֵב - 'to make empty the soul [feminine noun] of the hungry [masculine adjective]')."
Ibn Ezra
It shall come [feminine] that is, the blessing [feminine] shall come. The word has two ornamental affixes, the tav and the heh. Similarly, “help” [Psalms 44: 27], “salvation” [Psalms 3: 3], and “distress” [Psalms 120: 1]. Scripture compares the tribe to an ox, on account of having mentioned the produce of the field; and it mentions the firstborn of his ox, on account of its greater stength (the firstborn being the “first of strength” [21: 17]).