I did a search for all imperative verbs using @V??M to search all passages in NA27 with Logos Greek Morphology. The Analysis result shows 402 occurrences of the word ἰδοὺ.
Next I did a Bible search, again of the NA27, looking for the word ἰδοὺ. This time Logos came up with 200 hits in 193 verses.
That's a big difference.
Does anyone have an explanation?