'Sustain' in the Bible

"I also told you at that time that I won't be able to sustain you on my own.

How can I myself alone sustain your wear, and your burden, and your strife?

Is this how you repay the Lord,you foolish and senseless people?Isn’t He your Father and Creator?Didn’t He make you and sustain you?

"Look now! I AM, and there is no other god besides me. I myself cause death and I sustain life; I wound severely and I also heal; from my power no one can deliver.