▁understood ▁analog ically . ▁A ▁con cluding ▁sch ol ion ▁presents ▁New ▁Testament ▁evidence ▁in ▁favor ▁of ▁the ▁" ps ych ological " ▁anal ogy ▁of ▁the ▁Tr inity . ▁ ▁In ▁The ▁Tri une ▁God : ▁System at ics , ▁L on er gan ▁develop s ▁the ▁theory ▁of ▁intellig ible ▁( or ▁spiritual ) ▁em an ations ▁in ▁God ▁as ▁prop ounded ▁by ▁Thomas ▁Aqu inas . ▁The ▁volume ▁begins ▁with ▁a ▁discussion ▁of ▁the ▁method ▁of ▁system atic ▁the ology ▁which ▁see ks ▁an ▁imper fect ▁but ▁highly ▁fruit ful ▁understanding ▁of ▁the ▁myster ies ▁of ▁faith ▁by ▁means ▁of ▁analog ies . ▁The ▁following ▁chap ters ▁develop ▁an ▁analog ical ▁conception ▁of ▁the ▁divine ▁process ions ▁( as ▁intellig ible ▁em an ations ), ▁relations , ▁persons , ▁and ▁the ▁two ▁miss ions ▁of ▁the ▁Word ▁and ▁Spirit . ▁ ▁Christ ology ▁L on er gan ▁produced ▁two ▁text books ▁in ▁Christ ology . ▁In ▁ 1 9 5 6 ▁he ▁produced ▁a ▁supp lement al ▁volume ▁De ▁Constitution e ▁Christ i ▁Ont olog ica ▁et ▁Psych ica ; ▁the ▁fourth ▁and ▁final ▁edition ▁of ▁ 1 9 6 4 ▁was ▁presented ▁in ▁the ▁Collect ed ▁Works ▁with ▁an ▁inter leaf ▁translation ▁as ▁The ▁Ont ological ▁and ▁Psych ological ▁Constitution ▁of ▁Christ ▁( 2 0 0 2 ). ▁L on er gan ▁clar ifies ▁the ▁met aph ys ical ▁principles ▁of ▁Christ ' s ▁constitution ▁as ▁one ▁person ▁in ▁two ▁distinct ▁n atures , ▁and ▁trans poses ▁that ▁framework