וַיִּשְׁלַ֞ח מֶ֣לֶךְ יִשְׂרָאֵ֗ל אֶֽל־הַמָּק֞וֹם אֲשֶׁ֨ר אָֽמַר־ל֧וֹ אִישׁ־הָאֱלֹהִ֛ים והזהירה [וְהִזְהִיר֖וֹ] וְנִשְׁמַ֣ר שָׁ֑ם לֹ֥א אַחַ֖ת וְלֹ֥א שְׁתָּֽיִם׃
And the king of Israel sent to the place which the man of God told him and warned him of; and he guarded himself there, not once nor twice.
Rashi on II Kings
The king of Yisroel dispatched [scouts]. He would send and see whether it was true.
Rashi on II Kings
And warned him. The man of God had warned him passing there.
Rashi on II Kings
Not once and not twice. Did he do so for him, but many times.