In Veda God is said to be both Sat (existing) and Asat (non-existing)

(In Veda and Gita the words Sat and Asat are used in contradicting sense, but they can be correlated to mean the same by logical discussion.)

In Veda God is said to be both Sat and Asat (Sadeva Somya.., Asadvaa…). But in Gita God represented by Para Brahman is said to be neither Sat nor Asat (Nasat Naasaduchyate).  This appears to be a contradiction between Veda and Gita.  Sat means existence.  Asat means non-existence.  Let us take Veda.  When God is Sat, it means God is not Asat.  Similarly, when God is Asat, it means God is not sat. Hence, the resulting concept in each statement of Veda combined gives the concept of Gita.  Thus, Veda and Gita are correlated because Gita is said to be the essence of all Vedas.