Daniel 1:10

and the chief of the eunuchs saith to Daniel, 'I am fearing my lord the king, who hath appointed your food and your drink, for why doth he see your faces sadder than those of the lads which are of your circle? then ye have made my head indebted to the king,'

Proverbs 29:25

Fear of man causeth a snare, And the confident in Jehovah is set on high.

Matthew 6:16-18

'And when ye may fast, be ye not as the hypocrites, of sour countenances, for they disfigure their faces, that they may appear to men fasting; verily I say to you, that they have their reward.

John 12:42-43

Still, however, also out of the rulers did many believe in him, but because of the Pharisees they were not confessing, that they might not be put out of 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
Fear of man causeth a snare, And the confident in Jehovah is set on high.
John 12:42
Still, however, also out of the rulers did many believe in him, but because of the Pharisees they were not confessing, that they might not be put out of the synagogue,

Worse liking

Matthew 6:16
'And when ye may fast, be ye not as the hypocrites, of sour countenances, for they disfigure their faces, that they may appear to men fasting; verily I say to you, that they have their reward.