"nor scrip for the way, nor two coats, nor sandals, nor staff -- for the workman is worthy of his nourishment" - Matthew 10:10
Doubts:
"A disciple is not above the teacher, nor a servant above his lord;sufficient to the disciple that he may be as his teacher, and the servant as his lord; if the master of the house they did call Beelzeboul, how much more those of his household?" Matthew-10:24,25
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"It is proper for you, Kalamas [the people of Kesaputta], to doubt, to be uncertain; uncertainty has arisen in you about what is doubtful. Come, Kalamas. Do not go upon what has been acquired by repeated hearing; nor upon tradition; nor upon rumor; nor upon what is in a scripture; nor upon surmise; nor upon an axiom; nor upon specious reasoning; nor upon a bias towards a notion that has been pondered over; nor upon another's seeming ability; nor upon the consideration, 'The monk is our teacher.' Kalamas, when you yourselves know: 'These things are bad; these things are blameable; these things are censured by the wise; undertaken and observed, these things lead to harm and ill, abandon them."
This was by Buddha, Kalama sutra