Daniel 1:10

And the chief of the eunuchs will say to Daniel, I fear my lord the king, who allotted your food and your drink: for wherefore shall he see your faces gloomy above the children as of your age? and make my head guilty to the King

Proverbs 29:25

The fear of man will give a snare: and he trusting in Jehovah shall be exalted.

Matthew 6:16-18

And when ye fast, be not, as hypocrites, of gloomy aspect: for they conceal their faces that they might appear to men fasting. Verily I say to you, That they have their reward.

John 12:42-43

Yet nevertheless also many of the rulers believed in him; but on account of the Pharisees they did not acknowledge, lest they should be excluded 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 man will give a snare: and he trusting in Jehovah shall be exalted.
John 12:42
Yet nevertheless also many of the rulers believed in him; but on account of the Pharisees they did not acknowledge, lest they should be excluded from the synagogue:

Worse liking

Matthew 6:16
And when ye fast, be not, as hypocrites, of gloomy aspect: for they conceal their faces that they might appear to men fasting. Verily I say to you, That they have their reward.