Charles H. Spurgeon on Psalms 16:11

"In thy presence is fulness of joy." In this life our joy is mixed with sorrow like a prick under the rose. Jacob had joy when his sons returned home from Egypt with the sacks full of corn, but much sorrow when he perceived the silver in the sack's mouth. David had much joy in bringing up the ark of God, but at the same time great sorrow for the breach made upon Uzza. This is the Lord's great wisdom to temper and moderate our joy. As men of a weak constitution must have their wine qualified with water for fear of distemper, so must we in this life (such is our weakness), have our joy mixed with sorrow, lest we turn giddy and insolent. Here our joy is mixed with fear (Psalm 2), "Rejoice with trembling;" the women departed from the sepulchre of our Lord "with fear and great joy." Matthew 28:8. In our regenerate estate, though we have joy from Christ that is "formed in us," yet the impression of the terrors of God before the time of our new birth remains in us; as in a commotion of the sea by a great tempest after a stormy wind hath ceased, yet the impression of the storm remains and makes an agitation. The tender mother recovering her young child from danger of a fall hath joy from the recovery; but with much fear with the impression of the danger; so after we are recovered here from our dangerous falls by the rich and tender mercies of our God, sometime prevening us, sometime restoring us; though we rejoice in his mercy, and in our own recovery out of the snares of Satan, yet in the midst of our joy the remembrance of former guiltiness and danger do humble our hearts with much sorrow, and some trepidation of heart. As our joy here is mixed with fears, so with sorrow also. Sound believers do look up to Christ crucified, and do rejoice in his incomparable love, that such a person should have died such a death for such as were enemies to God by sinful inclinations and wicked works; they look down also upon their own sins that have wounded and crucified the Lord of glory, and this breaketh the heart, as a widow should mourn, who by her froward and lewd behaviour hath burst the heart of a kind and loving husband.

The sound believers look to their small beginnings of grace, and they rejoice in the work of God's hands; but when they compare it with that original and primitive righteousness, they mourn bitterly, as the elders of Israel did at the rebuilding of the temple (Ezra 3:12; "They who had seen the first house wept." But in heaven our joy will be full, without mixture of sorrow (John 16:20); "Your sorrow," saith our Lord, "shall be turned into joy." Then will there be no sorrow for a present trouble, nor present fear of future troubles. Then their eye will deeply affect their heart; the sight and knowledge of God the supreme and infinite good will ravish, and take up all their heart with joy and delight. Peter in the Mount (Matthew 17), was so affected with that glorious sight, that he forgot both the delights and troubles that were below; "It is good to be here," said he. How much more will all worldly troubles and delights be forgot at that soul-satisfying sight in heaven, which is as far above that of Peter in the Mount, as the third heaven is above that Mount, and as the uncreated is above the created glory! —William Colvill's "Refreshing Streams," 1655.