Deuteronomy 1:28

whither are we going up? our brethren have melted our heart, saying, A people greater and taller than we, cities great and fenced to heaven, and also sons of Anakim -- we have seen there.

Deuteronomy 9:1-2

'Hear, Israel, thou art passing over to-day the Jordan, to go in to possess nations greater and mightier than thyself; cities great and fenced in the heavens;

Numbers 13:28-33

only, surely the people which is dwelling in the land is strong; and the cities are fenced, very great; and also children of Anak we have seen there.

Joshua 14:8

and my brethren who have gone up with me have caused the heart of the people to melt, and I have been fully after Jehovah my God;

Exodus 15:15

Then have chiefs of Edom been troubled: Mighty ones of Moab -- Trembling doth seize them! Melted have all inhabitants of Canaan!

Deuteronomy 20:8

And the authorities have added to speak unto the people, and said, Who is the man that is afraid and tender of heart? -- let him go and turn back to his house, and the heart of his brethren doth not melt like his heart;

Joshua 2:9

and she saith unto the men, 'I have known that Jehovah hath given to you the land, and that your terror hath fallen upon us, and that all the inhabitants of the land have melted at your presence.

Joshua 2:11

And we hear, and melt doth our heart, and there hath not stood any more spirit in any man, from your presence, for Jehovah your God, He is God in the heavens above, and on the earth beneath.

Joshua 2:24

and they say unto Joshua, 'Surely Jehovah hath given into our hand all the land; and also, all the inhabitants of the land have melted at our presence.'

Joshua 11:22

There hath not been left Anakim in the land of the sons of Israel; only in Gaza, in Gath, and in Ashdod, were they left.

Joshua 15:14

And Caleb is dispossessing thence the three sons of Anak, Sheshai, and Ahiman, and Talmai, children of Anak,

Judges 1:10

and Judah goeth unto the Canaanite who is dwelling in Hebron (and the name of Hebron formerly is Kirjath-Arba), and they smite Sheshai, and Ahiman, and Talmai.

Judges 1:20

And they give to Caleb Hebron, as Moses hath spoken, and he dispossesseth thence the three sons of Anak.

2 Samuel 21:16-22

and Ishbi-Benob, who is among the children of the giant -- the weight of his spear is three hundred shekels weight of brass, and he is girded with a new one -- speaketh of smiting David,

Isaiah 13:7

Therefore, all hands do fail, And every heart of man doth melt.

Ezekiel 21:7

and it hath come to pass, when they say unto thee, For what art thou sighing? that thou hast said: Because of the report, for it is coming, And melted hath every heart, And feeble hath been all hands, And weak is every spirit, And all knees go -- waters, Lo, it is coming, yea, it hath been, An affirmation of the Lord Jehovah.'

Treasury of Scripture Knowledge

Summary

Whither shall we go up? our brethren have discouraged our heart, saying, The people is greater and taller than we; the cities are great and walled up to heaven; and moreover we have seen the sons of the Anakims there.

Bible References

Discouraged

Deuteronomy 20:8
And the authorities have added to speak unto the people, and said, Who is the man that is afraid and tender of heart? -- let him go and turn back to his house, and the heart of his brethren doth not melt like his heart;
Joshua 2:9
and she saith unto the men, 'I have known that Jehovah hath given to you the land, and that your terror hath fallen upon us, and that all the inhabitants of the land have melted at your presence.
Isaiah 13:7
Therefore, all hands do fail, And every heart of man doth melt.
Ezekiel 21:7
and it hath come to pass, when they say unto thee, For what art thou sighing? that thou hast said: Because of the report, for it is coming, And melted hath every heart, And feeble hath been all hands, And weak is every spirit, And all knees go -- waters, Lo, it is coming, yea, it hath been, An affirmation of the Lord Jehovah.'

The people

Deuteronomy 9:1
'Hear, Israel, thou art passing over to-day the Jordan, to go in to possess nations greater and mightier than thyself; cities great and fenced in the heavens;
Numbers 13:28
only, surely the people which is dwelling in the land is strong; and the cities are fenced, very great; and also children of Anak we have seen there.

We have seen

Deuteronomy 9:2
a people great and tall, sons of Anakim, whom thou -- thou hast known, (and thou -- thou hast heard: Who doth station himself before sons of Anak?)
Joshua 11:22
There hath not been left Anakim in the land of the sons of Israel; only in Gaza, in Gath, and in Ashdod, were they left.
Joshua 15:14
And Caleb is dispossessing thence the three sons of Anak, Sheshai, and Ahiman, and Talmai, children of Anak,
Judges 1:10
and Judah goeth unto the Canaanite who is dwelling in Hebron (and the name of Hebron formerly is Kirjath-Arba), and they smite Sheshai, and Ahiman, and Talmai.
2 Samuel 21:16
and Ishbi-Benob, who is among the children of the giant -- the weight of his spear is three hundred shekels weight of brass, and he is girded with a new one -- speaketh of smiting David,

General references

Numbers 13:31
And the men who have gone up with him said, 'We are not able to go up against the people, for it is stronger than we;'
Numbers 32:9
and they go up unto the valley of Eshcol, and see the land, and discourage the heart of the sons of Israel so as not to go in unto the land which Jehovah hath given to them;
Deuteronomy 3:5
All these are cities fenced with high walls, two-leaved doors and bar, apart from cities of villages very many;