Therefore he brought down their heart with labour; they fell down, and there was none to help.

And their heart was humbled with labours: they were weakened, and their was none to help them.

And he bowed down their heart with labour; they stumbled, and there was none to help:

And He humbleth with labour their heart, They have been feeble, and there is no helper.

So that he made their hearts weighted down with grief; they were falling, and had no helper.

Therefore He humbled their heart with travail, They stumbled, and there was none to help-

Therefore he brought down their heart - Their pride; their self-sufficiency; their self-complacency. They thought that they could do without God; they relied on their own resources, and were self-satisfied; but God showed them that all this was vain, and humbled them, as he often does the proud, in the dust.
With labour - With trouble; with affliction; with disappointment; with reverses; with sorrow. The Hebrew word - עמל ‛âmâl - would include all this. Compare Genesis 41:51; Deuteronomy 26:7; Job 3:10; Job 16:2.
They fell down - They, as it were, "stumbled" - for so the Hebrew word means. They were walking along with a haughty air, and a high look, and suddenly they stumbled and fell.
And there was none to help - No God to interpose; no nation to befriend them; no human arm to be stretched out for their deliverance. God gave them up, helpless, to the just consequences of their folly and wickedness.

He brought down their heart with labor - He delivered them into the hands of their enemies. and, as they would not be under subjection to God, he delivered them into slavery to wicked men: "So they fell down, and there was none to help;" God had forsaken them because they had forsaken him.

Therefore he brought down their heart with labour,.... Humbled them under his mighty hand; brought down their haughty spirits and proud stomachs by one afflictive providence or another; by which the Lord humbles men, as he did the Israelites in the wilderness, and hides pride from them: or with trouble of mind, under a conviction of sin; when pride, which is the cause of rebellion against God, and of contempt of his counsel, is brought down, and the haughtiness of man laid low; and when men, humbled under a sense of sin, are made willing to submit to Christ and his righteousness, to God's way of saving sinners by him, to the law of God, and to the Gospel of Christ.
They fell down; they threw themselves prostrate at his feet for mercy; their heart and strength failed them, as the word signifies, and is used in Psalm 31:10, terrified with a sense of divine wrath, they could not stand before the Lord, nor brave it out against him.
And there was none to help; they could not help themselves, nor was there any creature that could. There is salvation in no other than in Christ; when he saw there was none to help him in that work, his own arm brought salvation to him; and when sinners see there is help in no other, they apply to him, as follows.

Heart - The pride and obstinacy of their hearts. Fell - They fell into hopeless miseries.