Well done, my good servant!’ his master replied. ‘Because you have been trustworthy in a very small matter, take charge of ten cities.
JMR's Words Of Wisdom
A familiar passage from the parable of the 3 servants left with 10 minas from their master. It seems to me that in this context trustworthy means being diligent, pro-active, or hard-working.
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God wants us to be hard-working in matters that he assigns us. And based on your level of effort towards your assignment he rewards you and further expands your coffers.
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Seize opportunities, take charge of matters regarding assignments God puts before you and watch Him bless you for you diligence.