Charles H. Spurgeon on Psalms 119:10

With my whole heart have I sought thee. His heart had gone after God himself: he had not only desired to obey his laws, but to commune with his person. This is a right royal search and pursuit, and well may it be followed with the whole heart. The surest mode of cleansing the way of our life is to seek after God himself, and to endeavour to abide in fellowship with him. Up to the good hour in which he was speaking to his Lord, the Psalmist had been an eager seeker after the Lord, and if faint, he was still pursuing. Had he not sought the Lord he would never have been so anxious to cleanse his way.

It is pleasant to see how the writer's heart turns distinctly and directly to God. He had been considering an important truth in the preceding verse, but here he so powerfully feels the presence of his God that he speaks to him, and prays to him as to one who is near. A true heart cannot long live without fellowship with God.

His petition is founded on his life's purpose: he is seeking the Lord, and he prays the Lord to prevent his going astray in or from his search. It is by obedience that we follow after God, hence the prayer,

O let me not wander from thy commandments; for if we leave the ways of God's appointment we certainly shall not find the God who appointed them. The more a man's whole heart is set upon holiness the more does he dread falling into sin; he is not so much fearful of deliberate transgression as of inadvertent wandering: he cannot endure a wandering look, or a rambling thought, which might stray beyond the pale of the precept. We are to be such wholehearted seekers that we have neither time nor will to be wanderers, and yet with all our wholeheartedness we are to cultivate a jealous fear lest even then we should wander from the path of holiness.

Two things may be very like and yet altogether different: saints are "strangers" "I am a stranger in the earth" (Psalms 119:19), but they are not wanderers: they are passing through an enemy's country, but their route is direct; they are seeking their Lord while they traverse this foreign land. Their way is hidden from men; but yet they have not lost their way.

The man of God exerts himself, but does not trust himself: his heart is in his walking with God: but he knows that even his whole strength is not enough to keep him right unless his King shall be his keeper, and he who made the commands shall make him constant in obeying them: hence the prayer, "O let me not wander." Still, this sense of need was never turned into an argument for idleness; for while he prayed to be kept in the right road he took care to run in it with his whole heart seeking the Lord.

It is curious again to note how the second part of the Psalm keeps step with the first; for where Psalms 119:2 pronounces that man to be blessed who seeks the Lord with his whole heart, the present verse claims the blessing by pleading the character: With my whole heart have I sought thee.