Create. Hebrew. bara', as in Genesis 1:1. The new heart is not the old one changed, but newly created: i.e. "begotten" by God, as in John 3:6-8.
right. steadfast. Compare Psalms 78:37; Psalms 112:7.
spirit. Hebrew. ruach. App-9. Put by Figure of speech Synecdoche (of Part), for whole character.