deliverance from the misery of the old self is not the offspring of genuine penitence, but only of base fear. "A steadfast spirit" is needful in order to keep a cleansed heart clean; and, on the other hand, when, by cleanness of heart, a man is freed from the perturbations of rebellious desires and the weakening influences of sin, his spirit will be steadfast. The two characteristics sustain each other. Consciousness of corruption dictated the former desire; penitent recognition of weakness and fluctuation inspires the latter. It may be observed, too, that the triad of petitions having reference to "spirit" has for its central one a prayer for God's Spirit, and that the other two may be regarded as dependent on that. Where God's Spirit dwells, the human spirit in which it abides will be firm with uncreated strength. His energy, being infused into a tremulous, changeful humanity, will make it stable. If we are to stand fast, we must be stayed on God. The group of petitions in ver. 11 is negative. It deprecates a possible tragic separation from God, and that under two aspects. "Part me not from Thee; part not Thyself from me." The former prayer, "Cast me not out from Thy presence," is by some explained according to the analogy of other instances of the occurrence of the phrase, where it means expulsion from the land of Israel; and is claimed, thus interpreted, as a clear indication that the psalmist speaks in the name of the nation. But however certainly the expression is thus used elsewhere, it cannot, without introducing an alien thought, be so interpreted in its present connection, imbedded in petitions of the most spiritual and individual character: much rather, the psalmist is recoiling from what he knows only too well to be the consequence of an unclean heart--separation from God, whether in the sense of exclusion from the sanctuary, or in the profounder sense, which is not too deep for such a psalm, of conscious loss of the light of God's face. He dreads being, Cain-like, shut out from that presence which is life; and he knows that, unless his previous prayer for a clean heart is answered, that dreary solitude of great darkness must be his lot. The sister petition, "Take not Thy holy spirit from me," contemplates the union between God and him from the other side. He regards himself as possessing that Divine spirit; for he knows that, notwithstanding his sin, God has not left him, else he would not have these movements of godly sorrow and yearnings for purity. There is no reason to commit the anachronism of supposing that the psalmist had any knowledge of New Testament teaching of a personal Divine Spirit. But if we may suppose that he is David, this prayer has special force. That anointing which designated and fitted him for kingly office symbolised the gift of a Divine influence accompanying a Divine call. If we further remember how it had fared with his predecessor, from