'In Me' in the Bible

My God has sent his angel, and has shut the lions' mouths, that they have not hurt me: because before him innocence was found in me; and also before you, O king, have I done no wrong.

Here is the end of the matter. As for me Daniel, my thoughts much troubled me, and my countenance changed in me: but I kept the matter in my heart.

Therefore I was left alone, and saw this great vision, and there remained no strength in me: for my vigor was turned in me into ruin, and I retained no strength.

For how can the servant of this my lord talk with this my lord? for as for me, straightway there remained no strength in me, neither is there breath left in me.