Psalms 40:11

Thy tender mercies - רחמיך rachameycha , such propensities and feelings as a mother bears to her child; or animals in general to their young.

Let thy loving-kindness - חסדך chasdecha , thy overflowing and superabundant mercy.

And thy truth - What is revealed in thy word: continually preserve me. Mercy to help me, truth to direct me; and, by the operation of both, I shall be continually preserved from sin and evil.