Treasury of Scripture Knowledge
Summary
                            For all his days are sorrows, and his travail grief; yea, his heart taketh not rest in the night. This is also vanity.                        
                    His heart
General references
Bible References
His heart
                                        Ecclesiastes 5:12                                        
                                                                                                                                A labouring man sleepeth sweetly, whether it be little or much that he eateth; but the abundance of the rich will not suffer him to sleep.
                                    
                                        Esther 6:1                                        
                                                                                                                                The same night could not the king sleep, and he commanded to bring the Chronicles and the stories: which when they were read before the king,
                                    
                                        Job 7:13                                        
                                                                                                                                When I think, 'My bed shall comfort me; I shall have some refreshing by talking to myself upon my couch,'
                                    
                                        Psalm 6:6                                        
                                                                                                                                I am weary of my groaning; every night wash I my bed, and water my couch with my tears.
                                    
                                        Psalm 32:4                                        
                                                                                                                                For thy hand is heavy upon me both day and night, and my moisture is like the drought in Summer. Selah.
                                    
                                        Psalm 77:2                                        
                                                                                                                                In the time of my trouble I sought the LORD, I held up mine hands to him in the night season, for my soul refused all other comfort.
                                    
                                        Daniel 6:18                                        
                                                                                                                                So the king went in to his palace, and kept him sober all night, so that there was no table spread before him, neither could he take any sleep.
                                    
                                        Acts 14:22                                        
                                                            
                        and strengthened the disciples souls: exhorting them to continue in the faith, affirming that we must through much tribulation enter into the kingdom of God.
                                    General references
                                        Ecclesiastes 1:2                                        
                                                                                                                                All is but vanity - sayeth the Preacher - all is but plain vanity.
                                    
                                        Ecclesiastes 3:9                                        
                                                            
                        What else hath a man that doth anything, but weariness and labour?