John Gill Commentary Psalms 38:9

"Lord, all my desire is before thee; And my groaning is not hid from thee." — Psalms 38:9 (ASV)

Lord, all my desire [is] before you
To be delivered from his afflictions, to have a discovery and application of pardoning grace, and to have communion with his God: the desire of his soul was unto these things; and it was some satisfaction to him that it was before the Lord, and known unto him, before whom all things are naked and open;

and my groaning is not hid from you ;
under the weight of his affliction, the burden of his sin, and which he expressed in prayer to the Lord, and which is often done with groanings which cannot be uttered: but even these are known and understood by the Lord.