The Kind of Action of the Present Tense:
The present tense primarily expresses linear action; however, depending on context can focus on a point in time. With the Greek verb the time is secondary to the type of action; therefore, the present tense is not restricted to only expressing action going on in the present time. The time element is expressed by the mode more than the tense; however, the progressive force of the present tense needs to be considered regardless of what mode it is used with, especially the Subjunctive and Optative modes.
The Aoristic Present
Denotes point-in-time action in the present time; taking place at the moment of speaking or writing without reference to its progress.
And Peter said to him, “Aenea, Jesus the Christ heals you, stand up furnish for yourself and he immediately rose. Acts 9:34
The Gnomic Present
Represents that which is assumed to be true at all times; simply affirming that something does happen under given circumstances.