'Obligations' in the Bible

I am already under obligations alike to Greek-speaking races and to others, to cultured and to uncultured people:

Pay your obligations to everyone: taxes to those you owe taxes, tolls to those you owe tolls, respect to those you owe respect, and honor to those you owe honor.

He erased the certificate of debt, with its obligations, that was against us and opposed to us, and has taken it out of the way by nailing it to the cross.

But as for you, you must exercise habitual self-control, and not live a self-indulgent life, but do the duty of an evangelist and fully discharge the obligations of your office.