Two things stood out as I was reading this morning:

““You are the light of the world—like a city on a hilltop that cannot be hidden.  No one lights a lamp and then puts it under a basket. Instead, a lamp is placed on a stand, where it gives light to everyone in the house.  In the same way, let your good deeds shine out for all to see, so that everyone will praise your heavenly Father.” Matthew 5:14-16 NLT

“But let your ‘Yes’ be ‘Yes,’ and your ‘No,’ ‘No.’ For whatever is more than these is from the evil one.” Matthew 5:37 NKJV