From Psalms 119:9-16, 33-48(ESV):
How can a young man keep his way pure? By guarding it according to Your Word. With my whole heart I seek You; let me not wander from Your commandments! I have stored up Your Word in my heart, that I might not sin against You. Blessed are You, O LORD; teach me Your statutes! With my lips I declare all the rules of Your mouth. In the way of Your testimonies I delight as much as in all riches. I will meditate on Your precepts and fix my eyes on Your ways. I will delight in your statutes; I will not forget Your Word…
Teach me, O LORD, the way of Your statutes; and I will keep it to the end. Give me understanding, that I may keep Your law and observe it with my whole heart. Lead me in the path of Your commandments, for I delight in it. Incline my heart to Your testimonies, and not to selfish gain! Turn my eyes from looking at worthless things; and give me life in Your ways. Confirm to Your servant Your promise, that You may be feared. Turn away the reproach that I dread, for Your rules are good. Behold, I long for Your precepts; in Your righteousness give me life!
Let Your steadfast love come to me, O LORD, Your salvation according to Your promise; then I shall have an answer for Him who taunts me, for I trust in Your word. And take not the word of truth utterly out of my mouth, for my hope is in Your rules. I will keep Your law continually, forever and ever, and I shall walk in a wide place, for I have sought Your precepts. I will also speak of Your testimonies before kings, and shall not be put to shame, for I find my delight in Your commandments, which I love, and I will meditate on Your statutes.