Truth's principles: or, Those things about doctrine and worship, which are most surely believed and received amongst the people of God, called Quakers : viz. concerning the man Christ, his sufferings, death, resurrection, faith in his blood, the imputation of his righteousness, sanctification, justification &c. Written, to stop the mouth of clamour, and to inform all who desire to know the truth as it is in Jesus; by the servant of the Lord, John Crook. To which is added, somewhat concerning the difference between the perswasions of reason, and the perswasions of faith.