I know that Hashem is not physical but is He spiritual? Also does He exist in time?
Is it possible to say that the Jews were in Egypt for only 210 years because they were worked so hard? Would Hashem really do that if he already told Avraham that they would be there for 400 years?
Can I give ma'aser on money that I didn't earn yet but I know I will be earning in the future?