invariable

_They see_ that every work of God is invariable in the period of its appearance. They behold summer and winter: _perceiving_ that the whole earth is full of water; and that the cloud, the dew, and the rain refresh it.

_That_ the works at the beginning of every existing year, that all his works, are subservient to him, and invariable; yet as God has appointed, so are all things brought to pass.