Q 182 How doth the Spirit help us to pray?

A. We not knowing what to pray for as we ought, the Spirit helpeth our infirmities, by enabling us to understand both for whom, and what, and how prayer is to be made; and by working and quickening in our hearts (although not in all persons, nor at all times, in the same measure) those apprehensions, affections, and graces which are requisite for the right performance of that duty.[1167]

[1167] Romans 8:26-27. Likewise the Spirit also helpeth our infirmities: for we know not what we should pray for as we ought: but the Spirit itself maketh intercession for us with groanings which cannot be uttered. And he that searcheth the hearts knoweth what is the mind of the Spirit, because he maketh intercession for the saints according to the will of God.

Psalm 10:17. LORD, thou hast heard the desire of the humble: thou wilt prepare their heart, thou wilt cause thine ear to hear.

Zechariah 12:10. And I will pour upon the house of David, and upon the inhabitants of Jerusalem, the spirit of grace and of supplications: and they shall look upon me whom they have pierced, and they shall mourn for him, as one mourneth for his only son, and shall be in bitterness for him, as one that is in bitterness for his firstborn.