There is no scripture teaching dispensations.
Dispensationalism is a false gospel that cuts Yehova’s indivisible word into arbitrary pieces, and denies the true gospel preached by all of Yehova’s appointed leaders from Moses to the NT apostles.
Put it far away from you and you will do well.
"Whereof I am made a minister, according to the DISPENSATION OF GOD which is given to me for you, TO FULFILL THE WORD OF GOD:"(Colossians 1:25).
"For I do this thing willingly, I have a reward: but if against my will, a DISPENSATION OF THE GOSPEL IS COMMITTED UNTO ME."(1 Cor. 9:17).
Are you sure you want to continue down this road, editor?...
Dispensation is simply a different word for "administration". God did indeed have different ways He administered or managed things.
Ephesians 3:2 If ye have heard of the dispensation of the grace of God which is given me to you-ward:
Ephesians 3:9 and to make plain to everyone the administration of this mystery, which for ages past was kept hidden in God, who created all things.
The Old Testament was the administration (dispensation) of law and the New Testament is the administration (dispensation) of grace. And don't try to put those under grace back under the law.
So when Paul says ‘this dispensation’ he’s just mistaken, is that your position as you contradict him?