Ezekiel seems to have been angry because Yahweh had sent him to speak to the Israelite exiles, thus rebelling against Yahweh himself. Though he was supposed to speak to them, he sat in silence for seven days, even though he could feel the anger of Yahweh "powerfully pressing on" him.
The words "bitterness" and "rage" are types of anger. This can be stated as a separate sentence. Alternate translation: "away. I was bitter and my spirit was full of anger" or "away. I was very bitter and angry"
Ezekiel speaks of his anger at Yahweh as if there were a bad taste in his mouth because Yahweh had forced him to eat something that tasted bad. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Ezekiel speaks of being sad and tired because Yahweh had commanded him to do things he did not want to do as if Yahweh were pushing him down into the ground. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Possible meanings are 1) the word "hand" is often used to refer to someone's power or action. Alternate translation: "the power of Yahweh" or 2) Ezekiel knew that Yahweh was angry with him because he was not obeying Yahweh by speaking to the Israelite exiles. (See: [[rc://en/ta/man/translate/figs-metonymy]])