Then consider, for a moment, the third element in the character which David longs to possess--a _free_ spirit. He who is holy because full of God's Spirit, and constant in his holiness, will likewise be 'free.' That is the same word which is in other places translated 'willing'--and the scope of the Psalmist's desire is, 'Let my spirit be emancipated from sin by _willing_ obedience.' This goes very deep into the heart of all true godliness. The only obedience which God accepts is that which gladly, and almost as by an instinctive inward impulse, harmonises the human will with the divine. 'Lo! I come: in the volume of the book it is written of me, I delight to do Thy will, and Thy law is within my heart.' That is a blessed thought, that we may come to do Him service not because we must, but because we like; not as serfs, but as sons; not thinking of His law as a slave-driver that cracks his whip over our heads, but as a friend that lets us know how we may please Him whom it is our delight to obey. And so the Psalmist prays, 'Let my obedience be so willing that I had rather do what Thou wilt than anything besides.'
'_Then_,' he thinks, 'I shall be free.' Of course--for the correlative of freedom is lawful authority, and the definition of freedom is willing submission. If for us duty is joy, and all our soul's desires flow with an equable motion parallel to the will of God, then there is no sense of restraint in keeping within the limits beyond which we do not seek to go. The willing spirit sets us free, free from the 'ancient solitary reign' of the despot Self, free from the mob rule of passions and appetites, free from the incubus of evil habits, free from the authority of men's voices and examples. Obedience is freedom to them that have learned to love the lips that command. We are set free that we may serve: 'O Lord! truly I am Thy servant; Thou hast loosed my bonds.' We are set free in serving: 'I will walk at liberty, for I keep Thy precepts.' Let a willing, free spirit uphold me.
II. Observe, too, that desires for holiness should become prayers.
David does not merely long for certain spiritual excellences; he goes to God for them. And his reasons for doing so are plain. If you will look at the former verses of this psalm, you will see that he had found out two things about his sin, both of which make him sure that he can only be what he should be by God's help. He had learned what his crimes were in relation to God, and he had further learned what they indicated about himself. The teaching of his bitter experience as to the former of these two matters lies in that saying which some people have thought strange. 'Against _Thee only_ have I sinned.' What! Had he not committed a crime against human law? had he not harmed Uriah and Bathsheba? were not his deeds an offence to his whole kingdom? Yes, he knew all that; but he felt that over and above all that was black in his deed, considered in its bearing upon men, it was still blacker when it was referred to God; and a sadder word than 'crime' or 'fault' had to be used about it. I have done wrong as against my fellows, but worse than that, I have _sinned_ against God. The notion of _sin_ implies the notion of God. Sin is wilful transgression of the law of _God_. An atheist can have no conception of sin. But bring God into human affairs, and men's faults immediately assume the darker tint, and become men's sins. Therefore the need of prayer if these evils are to be blotted out. If I had done crime against man only, I should not need to ask God for pardon or cleansing; but I have sinned against Him, and done this evil in His sight, therefore my desires for deliverance address themselves to Him, and my longings for purity must needs break into the cry of entreaty to that God with whom are forgiveness and redemption from all iniquity.