19 Confidence in someone unfaithful in time of trouble is like a bad tooth or a lame foot.
Proverbs 25:19 Cross References - WEB
2 Chronicles 28:20-21
Job 6:14-20
14 “To him who is ready to faint, kindness should be shown from his friend; even to him who forsakes the fear of the Almighty.
15 My brothers have dealt deceitfully as a brook, as the channel of brooks that pass away;
16 Which are black by reason of the ice, in which the snow hides itself.
17 In the dry season, they vanish. When it is hot, they are consumed out of their place.
18 The caravans that travel beside them turn away. They go up into the waste, and perish.
19 The caravans of Tema looked. The companies of Sheba waited for them.
20 They were distressed because they were confident. They came there, and were confounded.
Isaiah 30:1-3
1 “Woe to the rebellious children”, says Yahweh, “who take counsel, but not from me; and who make an alliance, but not with my Spirit, that they may add sin to sin,
2 who set out to go down into Egypt, and have not asked my advice, to strengthen themselves in the strength of Pharaoh, and to take refuge in the shadow of Egypt!
3 Therefore the strength of Pharaoh will be your shame, and the refuge in the shadow of Egypt your confusion.
Isaiah 36:6
6 Behold, you trust in the staff of this bruised reed, even in Egypt, which if a man leans on it, it will go into his hand and pierce it. So is Pharaoh king of Egypt to all who trust in him.
Ezekiel 29:6-7
2 Timothy 4:16
16 At my first defense, no one came to help me, but all left me. May it not be held against them.