Leviticus 18-20
Soul, Spiritual,
and Sexual Holiness

We should trust God for both His defensive and offensive help, and praise Him for loyally executing justice for us.

Thanks God, that I can trust You to protect me, and teach me what You want me to do, so that Your name might be exalted in my life. Amen.

We will reap what we sow. If we want a bed of strawberries, we can't plant radishes, and allow thistles and thorns to grow.

Lord, thanks that You are sufficient for all my needs; may I draw upon Your grace to live as You intended, and reap the blessings of obedience. Amen.

These three chapters detail the daily holiness we need to receive the blessings God has planned for His people.

Sexual purity or impurity starts in our soul (mind, will, emotions/values) before it manifests itself in our bodies.

1Thess 4:1 Finally then, brothers, we beg and exhort you in the Lord Jesus, that as you received from us how you ought to walk and to please God, that you abound more and more. 2 For you know what instructions we gave you through the Lord Jesus. 3 For this is the will of God: your sanctification, that you abstain from sexual immorality, 4 that each one of you know how to possess himself of his own vessel in sanctification and honor, 5 not in the passion of lust, even as the Gentiles who don't know God; 6 that no one should take advantage of and wrong a brother or sister in this matter; because the Lord is an avenger in all these things, as also we forewarned you and testified. 7 For God called us not for uncleanness, but in sanctification. 8 Therefore he who rejects this doesn't reject man, but God, who has also given his Holy Spirit to you.

My Creator and Maker, You are infinitely wise and loving; You know what's best; thank You for creating me with desires and giving me grace to use or not use them as You desire. Amen.

What would happen if you treated others the way you would want them to treat you? 

All Sufficient Meeter of All My Needs, thank You that all my needs can be met in my relationship with You, so I'm free to love rather than use others (to meet my needs). Amen.

Do you use the Scriptures to guide your walk on this planet, or do you just follow the crowd or your desires?

Holy God, guide me in the paths that lead to godliness, so that I may be holy as You are Holy. Amen.

Deeper Understanding Through Bible Study 
(or being a mole about Molech)
I'm including this blurb to give those of you who want a more accurate understanding of the Scriptures a little insight into how to attain that. In most, if not all, cases where the translators had a difficulty interpreting a verse, it doesn't really matter. You would not follow God any differently.
Lev 18:21 Molech was a Canaanite fertility deity. In other passages and archeological evidence, children were sacrificed to him by fire. However, most translations of Lev 18:21 indicating sacrificing children by fire are incorrect. The original text is inspired; translations are not.
First, the passage is clearly in the context of sex (most of the chapter, and the verses above and below). So why the reference to Molech? It seems out of place. Inquiring minds want to know.
Second, we notice that “fire” is not in the original text. Where did that come from? Cross-references. The translators added “fire” to the text to try to reflect their understanding of Molech from other references. Interpreting Scripture with Scripture can lead to error, if you don't first understand the Scriptures in their original context. Only then you can compare your understanding of one verse with other verses. Otherwise you're building a theology on the basis of hundreds of half understood verses, or half-truths. Shaky ground to stand upon.
Third, some versions translate “children” as “seed”. A few clicks on Strong's number in a free software program like the OnlineBible.org, or theWord, or Biblos.com, will tell you that this word is indeed “seed” and only twice translated “child” in the KJV. Hmmm.
Fourth, I wonder if there is a Hebrew word for child or children. Typing “child*” into the search bar of the above mentioned programs (or using a concordance if you're old school) reveals that there is indeed a common Hebrew word, used thousands of times, to refer to children. The word in 18:21 means literally seed, as in that which causes life to start and grow. It's not about children, but about sperm, which in the right or wrong context do yield children.
Fifth, at this point I usually pull up an interlinear in Biblos.com or the OnlineBible (OLB) to see what's going on under the hood. Clicking on the Strong's numbers to bring up the lexical definitions, and seeing which fit the context will yield an insightful interpretation.
The first verb is to not “give, deliver, devote, consecrate, or dedicate” one's seed.
The next verb is to “pass or cross over” but in the Hiphil (a click in the OLB will tell you that this gives a “causative” meaning to “pass or cross over”) means to “cause to pass over, dedicate or devote.” (In the Piel intensive intentional form, it means to impregnate.)
The last verb “profane” is to “defile, pollute, or desecrate,” but it is in the Piel, where it expresses intentional action, yielding the meaning of “violating a covenant or honor.”
Six, using the interlinear text and the context appropriate definition yields:“You shall not give/devote your seed to cause it to pass over to Molech, and thus not violate/pollute the name/honor of God; I am Yahweh.”
You can get a similar but fuzzier view going to BibleGateway.com or anywhere else you can find Young's Literal Translation (YLT) 21`And of thy seed thou dost/shall not give to pass over to the Molech; nor dost thou pollute the name of thy God; I [am] Jehovah.
So how would an Israelite cause their seed to cross over to Molech, and thus violate the covenant and pollute the honor of God? By participating in the orgiastic worship of Molech, the fertility god, impregnating either a temple prostitute, or a pagan worshiper, and thus (in the wrong context) causing the seed of Abraham to become a follower of another god. Now you see why this prohibition is included in a section on sexual purity.

If you actually read this far, you have too much time on your hands, or you have the mental equipment to engage in real Bible Study. See “How to Study the Bible Like Sherlock Holmes”, and love God with all your mind.

God in a nutshell: God is holy (but then by now you totally know that), and requires holiness in His people in order to bless them (some are a little slow about this). He not only requires individual holiness but corporate as well, and charges us with the responsibility of keeping the community sanctified. 

Us in a nutshell: By default we get defiled, and then forfeit being blessed (sometimes our lives). We have the responsibility to be holy, governing our desires from the inside (soul=mind, will, emotions/values) out (body). We also need to keep spiritually pure, seeking only the True God in the ways He has revealed.