'Little' in the Bible

‘I know your deeds. See, I have set before you an open door which no one is able to shut, for you have a little power, and have kept My word, and have not renounced or denied My name.

Then they were each given a white robe; and they were told to rest and wait quietly for a little while longer, until the number of their fellow servants and their brothers and sisters who were to be killed even as they had been, would be completed.

and he had a little book (scroll) open in his hand. He set his right foot on the sea and his left foot on the land;

Then the voice which I heard from heaven, I heard again speaking to me, and saying, “Go, take the book (scroll) which is open in the hand of the angel who is standing on the sea and on the land.”

So I went up to the angel and told him to give me the little book. And he said to me, “Take it and eat it; it will make your stomach bitter, but in your mouth it will be as sweet as honey.”

So I took the little book from the angel’s hand and ate it, and in my mouth it was as sweet as honey; but once I had swallowed it, my stomach was bitter.

“And behold, I am coming quickly. Blessed (happy, prosperous, to be admired) is the one who heeds and takes to heart and remembers the words of the prophecy [that is, the predictions, consolations, and warnings] contained in this book (scroll).”