Lo!

Lo!
 

How could I translate into castellano this exclamative expression?

Context:
Lo! he babbles of the fish-frys of long ago...

My attempt:
¡Míra/lo! Cotorrea/parlotea cosas sin sentido de tiempos lejanos.

Gracias.

In the Bible, this is translated as 'mira' or 'mirad', depending on the version used, and 'he aquí'.

Mírale, instead of mirad, could be?

'Mira' and 'mirad' don't mention a direct object and are a common translation of 'lo'.
'Míralo' and 'miradlo' have a direct object (pronoun). This is also a translation of 'lo', especially when a direct object is evident. Contrast with 'helo aquí'.
'Mírale' and 'miradle' are the same as just above, but utilizing leísmo. Contrast with 'hele aquí'.

Thanks, Rusty.

Also "¡Hete aquí!" (Again a bit archaic or used humorously...)

For non-native English speakers, you need to know that the term lo! is borderline archaic except in the expression lo and behold.

Yup!

Lo and behold! = ¡Quién lo iba a decir!

or

¡Mira por donde!

The NT Greek is idou without an object, which is a singular imperative from to see (same root as video). The OE word lo is probably short for loke=look, which means the same as behold. So the Spanish mira is what you might expect. :)

Mira tú, ¡qué curioso! :)