Daniel 1:10

and the commander of the court officials said to Daniel, "I [am] afraid [of] my lord, the king, who has determined your food and your drink, for {why should} he see your face having a worse appearance than the young men who {are your age}? Then you will endanger my head with the king."

Proverbs 29:25

The fear of a person will lay a snare, but he who trusts in Yahweh will be secure.

Matthew 6:16-18

"Whenever you fast, do not be sullen like the hypocrites, for they make their faces unrecognizable in order that they may be seen fasting by people. Truly I say to you, they have received their reward in full!

John 12:42-43

Yet despite that, even many of the rulers believed in him, but because of the Pharisees they did not confess [it], so that they would not be expelled from the synagogue.

Treasury of Scripture Knowledge

Summary

And the prince of the eunuchs said unto Daniel, I fear my lord the king, who hath appointed your meat and your drink: for why should he see your faces worse liking than the children which are of your sort? then shall ye make me endanger my head to the king.

Worse liking

Bible References

I fear

Proverbs 29:25
The fear of a person will lay a snare, but he who trusts in Yahweh will be secure.
John 12:42
Yet despite that, even many of the rulers believed in him, but because of the Pharisees they did not confess [it], so that they would not be expelled from the synagogue.

Worse liking

Matthew 6:16
"Whenever you fast, do not be sullen like the hypocrites, for they make their faces unrecognizable in order that they may be seen fasting by people. Truly I say to you, they have received their reward in full!