Learn Spanish (Spain): No soy religioso, pero respeto todas las religiones. - I'm not religious, but I respect all religions.

In Spanish, a person's religion or core belief system is considered an intrinsic part of their identity. Because it is a defining, long-lasting characteristic, you use the verb ser (here, soy) rather than estar.

Why do we need the word las in todas las religiones?

In English, you can simply say "all religions", but Spanish requires a definite article (el, la, los, or las) after todo or its variations when referring to "all of" a noun. Therefore, it translates structurally as "all the religions".

How do we know the gender of religiones since it doesn't end in -o or -a?

Nouns ending in -ión (like religión, canción, or opinión) are almost always feminine in Spanish. That is why it takes the feminine plural article las and the feminine plural adjective todas.

The word respeto can be a noun meaning "respect". How do we know it is a verb here?

It comes down to sentence structure. It directly follows the conjunction pero (but) and acts upon a direct object (todas las religiones). This tells us it is functioning as the yo (I) form of the present tense verb respetar (to respect), rather than the noun.