Matthew 6:16

"And, when ye fast, be not as the hypocrites, of a sad countenance; for they disfigure their faces, that they may appear to men to fast. Verily I say to you, they receive their reward.

Romans 12:15

Be ready to rejoice with those who rejoice; to weep with those who weep;

Hebrews 13:3

Remember the prisoners, as bound with them; those ill-treated, as being yourselves also in the body.

Treasury of Scripture Knowledge

Summary

And Mephibosheth the son of Saul came down to meet the king, and had neither dressed his feet, nor trimmed his beard, nor washed his clothes, from the day the king departed until the day he came again in peace.

Bible References

Dressed his feet

Matthew 6:16
"And, when ye fast, be not as the hypocrites, of a sad countenance; for they disfigure their faces, that they may appear to men to fast. Verily I say to you, they receive their reward.
Romans 12:15
Be ready to rejoice with those who rejoice; to weep with those who weep;
Hebrews 13:3
Remember the prisoners, as bound with them; those ill-treated, as being yourselves also in the body.