13 Grief mingles not with mirth; and joy in the end comes to grief.
Proverbs 14:13 Cross References - LXX2012
Proverbs 5:4
4 but afterwards you will find her more bitter than gall, and sharper than a two-edged sword.
Ecclesiastes 2:2
2 I said to laughter, Madness: and to mirth, Why do you this:
Ecclesiastes 2:10-11
10 And whatever mine eyes desired, I withheld not from them, I withheld not my heart from all my mirth: for my heart rejoiced in all my labor; and this was my portion of all my labor.
11 And I looked on all my works which my hands had wrought, and on my labor which I laboured to perform: and behold, all was vanity and waywardness of spirit, and there is no advantage under the sun.
Ecclesiastes 7:5-6
Ecclesiastes 11:9
9 Rejoice, O young man, in your youth; and let your heart cheer you in the days of your youth, and walk in the ways of your heart blameless, but not in the sight of your eyes: yet know that for all these things God will bring you into judgment.