Speaker: I durst, my Lord, to wager she is honest Lay down my soul at stake. If you think other, Remove your thought. It doth abuse your bosom If any wretch...

The line "Remove your thought, It doth abuse your bosom" means that if someone thinks that a woman is not honest without any good reason, they are hurting themselves and their own reputation by having such a thought. The speaker is urging the listener to reconsider their unjustified suspicion and to trust that the woman in question is honest unless there is concrete evidence to the contrary. Therefore, the best paraphrase of this line is "You demean yourself by thinking so".