'Concerned' in the Bible

Yes, I confess my wrongdoing, and I am concerned about my sins.

Sustain me so that I can be safeand always be concerned about Your statutes.

I look to my right and observe no one is concerned about me. There is nowhere I can go for refuge, and no one cares for me.

O Lord, of what importance is the human race, that you should notice them? Of what importance is mankind, that you should be concerned about them?