Psalms 119:36 - Matthew Poole's English Annotations on the Holy Bible

Unto thy testimonies; to the love and practice of them. Not to covetousness; not to the inordinate love and desire of riches: which particular lust he mentions, partly, be cause this lust is most spreading and universal, and there is scarce any man who doth not desire riches either for the love of riches, or upon pretence of necessity, or for the service of pride or luxury, or some other lust; partly, because, this lust is most opposite to God's testimonies, and doth most commonly hinder men from receiving God's word, and from profiting by it; see Matthew 13:22 Luke 16:2 and partly, because this lust is most pernicious, as being the root of all evil, 1 Timothy 6:10, and is most mischievous in princes and governors, such as David was, and therefore in a special manner forbidden to them, Exodus 18:21.