Isaiah 1:13

1:13 Do not bring any more meaningless offerings;

I consider your incense detestable!

You observe new moon festivals, Sabbaths, and convocations,

but I cannot tolerate sin-stained celebrations!

Isaiah 37:17

37:17 Pay attention, Lord, and hear! Open your eyes, Lord, and observe! Listen to this entire message Sennacherib sent and how he taunts the living God!

Isaiah 56:4

56:4 For this is what the Lord says:

“For the eunuchs who observe my Sabbaths

and choose what pleases me

and are faithful to my covenant,