Charles Ellicott Commentary Psalms 86:11

"Teach me thy way, O Jehovah; I will walk in thy truth: Unite my heart to fear thy name." — Psalms 86:11 (ASV)

A reminiscence of older psalms. In addition to the marginal references, see Psalms 26:3.

Unite my heart — that is, unite all my powers and concentrate them on Your service. No doubt with recollection of Deuteronomy 6:5; Deuteronomy 10:12. Compare also Jeremiah 32:39, on which apparently the expression is directly based. An undivided will is in morals and religion equally essential.