The language of the original is emphatic: Mee yittain wehayah levavom zeh lahem:, literally, "Who will give that there may be such a heart in them?" They refuse to receive such a heart from me, who then can supply it?
O that there: Deuteronomy 32:29-30; Psalms 81:13-15; Isaiah 48:18; Jeremiah 44:4; Ezekiel 33:31-32; Matthew 23:37; Luke 19:42; 2 Corinthians 5:20, 2 Corinthians 6:1; Hebrews 12:25
keep all: Deuteronomy 11:1; Psalms 106:3, Psalms 119:1-5; Luke 11:28; John 15:14; Revelation 22:14