Here are a few tips on how you can get started praying Scripture:
Select a passage that is meaningful to you and that you feel speaks truth into your life. A psalm is a great place to start this practice (e.g., if you want to pray a prayer of praise to God, try Psalm 100).
Take a moment to ask God to bless your time in Scripture, to keep you focused, and to help you pray his Word.
Start reading through your passage slowly, meditating on each word and verse.
As you finish a sentence or a verse, stop and turn your thoughts into a prayer. Bring the ideas or truths of the passage into a conversation with God.
Use the words of the Bible to guide prayers of worship, confession, thanksgiving, and petition for yourself and others.