From Psa 19 lesson 1

Psa 19:6 His going forth [is] from the end of the heaven, and his circuit unto the ends of it: and there is nothing hid from the heat thereof.
Psa 19:7 The law of the LORD [is] perfect, converting the soul: the testimony of the LORD [is] sure, making wise the simple.
Psa 19:8 The statutes of the LORD [are] right, rejoicing the heart: the commandment of the LORD [is] pure, enlightening the eyes.
Psa 19:9 The fear of the LORD [is] clean, enduring for ever: the judgments of the LORD [are] true [and] righteous altogether.
Psa 19:10 More to be desired [are they] than gold, yea, than much fine gold: sweeter also than honey and the honeycomb.
Psa 19:11 Moreover by them is thy servant warned: [and] in keeping of them [there is] great reward.
Psa 19:12 Who can understand [his] errors? cleanse thou me from secret [faults].
Psa 19:13 Keep back thy servant also from presumptuous [sins]; let them not have dominion over me: then shall I be upright, and I shall be innocent from the great transgression.
Psa 19:14 Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O LORD, my strength, and my redeemer.

1)The LAW of the Lord is perfect:

"The Law is God’s revealed will. It means ‘instruction’ or ‘precept’ and is taken from a verb that signifies ‘to teach.’ It pertains more to the instruction or teaching that God uses to ‘guide’ us in the REVEALED TRUTH about our conduct than to a list of commands." From Hanby.org

When I finish commenting on all of these statements we will have the truth, that is the foundation stone for what we believe. These statements fly as old glory, in the face of the modern Psychological Gospel which is being taught at most So called Christian Universities.