Psalm 16:11

Thou wilt show me the path of life
Not the way of life and salvation for lost sinners, which is Christ himself; but the resurrection of the dead, which is a passing from death to life; and was shown to Christ, not doctrinally, or by illuminating his mind, and leading him into the doctrine of it, for so he himself has brought it to light by the Gospel; practically and experimentally, by raising him the dead, or by causing him to pass from death to life; and he was the first to whom the path of life was shown in this sense, or the that who ever trod in it, and so has led the way for others: hence he is called the that fruits of them that slept, the firstborn and first begotten from the dead; for though others were raised before, yet not to an immortal life, never to die more, as he was; now the view, the faith, and hope of this, of not being left in the grave so long as to see corruption, and of being raised from the dead to an immortal life, caused joy and gladness in Christ, at the time of his sufferings and death, as well as what follows;

in thy presence [is] fulness of joy:
Christ, being raised from the dead, ascended to heaven, and was received up into glory into his Father's presence, and is glorified with his own self, with his glorious presence, for which he prayed, ( John 17:5 ) ; and which fills his human nature with fulness of joy, with a joy unspeakable and full of glory; see ( Acts 2:28 ) ; and as it is with the head it will be with the members in some measure; now the presence of God puts more joy and gladness into them than anything else can do; but as yet their joy is not full; but it will be when they shall enter into the joy of their Lord, into the presence of God in the other world then everlasting joy will be upon their heads;

at thy right hand [there are] pleasures for evermore;
Christ being entered into heaven is set down at the right hand of God in human nature, an honour which is not conferred on any of the angels, ( Hebrews 1:13 ) ; where the man Christ Jesus is infinitely delighted with the presence of God, the never fading joys of heaven, the company of angels and glorified saints; here he sits and sees of the travail of his soul; he prolongs his days and sees his seed, souls called by grace, and brought to glory one after another, until they are all brought in, in whom is all his delight; and which was the joy set before him at the time of his sufferings and death: or the words may be rendered "in thy right are pleasant things for ever" ^F25, and may design those gifts and graces, which Christ, being exalted at the right hand of God, received from thence and gives to men, for the use and service, of his church and people, in the several successive ages of time; and so Aben Ezra takes the words to be an allusion to a man's giving pleasant gifts to his friend with his right hand.