  So God's knowledge of necessary truth and knowledge of tenseless contingent truth looks to be unchangeable, given only a small step beyond Scripture. We can take this a step further. The only sort of knowledge we've left out so far is knowledge of tensed contingent truths — such truths as that tomorrow I will finish the article or yesterday I did finish the article. If God always knows the tenseless correlates of these truths — e.g., that on March 27, 2002, it is the case that I tenselessly-finish the article on March 28, 2002 — then the sheer passage of time accounts for all changes in His contingent knowledge. For which tensed truth God knows — that I will finish, am finishing or did finish — depends simply on what time it is. So to speak, he never has to learn about whether I finish on March 28; he merely has to learn where in time he is in relation to March 28, and this tells him what tensed propositions are true about my finishing.  Thus one can make a case on what are basically Scriptural grounds that God's knowledge changes at most due to the bare passage of time.