Divinity is of arguable merit. I personally skip it but it is mostly up to you however I wouldn’t go past 3 points in it. Same goes for reckoning. Basically you need to spend 3 points to get past the 5 lvl of the tree and your viable options are Divinity(questionable survivability?), reckoning (threat) or DS/DG (utility).
You should be able to get by with only one point in SA, mana really isn’t a problem for us.
You need to spend 1 point in Improved Judgments so you can maintain a 96969 rotation (heaps of info around if you search for it)
Then you will have a whole bunch of points to spare, most people push down through ret to crusade for more threat. Or push down to improved lay on hands and Aura mastery for some more utility. Up to you really, only thing i would say is that Vindication is an awesome talent now and is very close to being mandatory.