וַיֹּ֙אמֶר֙ אַבְרָהָ֔ם כִּ֣י אָמַ֗רְתִּי רַ֚ק אֵין־יִרְאַ֣ת אֱלֹהִ֔ים בַּמָּק֖וֹם הַזֶּ֑ה וַהֲרָג֖וּנִי עַל־דְּבַ֥ר אִשְׁתִּֽי׃
Y Abraham respondió: Porque dije para mí: Cierto no hay temor de Dios en este Lugar, y me matarán por causa de mi mujer.
Rashi
רק אין יראת אלהים SURELY THERE IS NO FEAR OF GOD — When a stranger arrives in a city do people ask him about what he would like to eat or to drink, or do they ask him about his wife—“Is this your wife?” or “Is this your sister?” (Bava Kamma 92a) (Surely if they ask at all, it is about his needs; if they ask regarding his relationship to the lady accompanying him, it is evidence that they are not God-fearing people!)
Chizkuni
רק אין יראת, “there is only no awe of the Lord, etc;” Avraham could have said that there was no fear of any retribution for criminal acts from a deity. There are three diminutives in this verse, i.e. the words: ,רק, אך and מן. We have a rule that one diminutive is designed to exclude something from the rule discussed, whereas two such diminutives are a signal that something additional is to be added. It follows that when there are tree diminutives, it again is meant to exclude something. In this instance Avraham acknowledged that there were things in the universe which the Philistines feared, but it was not judgment by an invisible G-d. Rabbi Chavell refers the reader to the comment on this verse cited in Torah Shleymah #54. by an invisible G-d.
Sforno
רק אין יראת אלוקים במקום הזה, there is no respect for the government’s authority. The Philistines did not have kings, but their political leaders were known as סרנים, as we know from the story of Goliath, who was a law unto himself due to his personal strength and was not subject to the authority of such סרנים. Compare Goliath’s boast הלא אנכי הפלשתי ואתם עבדים לשאול, “am I not the Philistine, whereas you are slaves of Sha-ul.” (Samuel I 17,8)