'Prevented' in the Bible

So Sarai said to Abram, “Now behold, the Lord has prevented me from bearing children. Please go in to my maid; perhaps I will obtain children through her.” And Abram listened to the voice of Sarai.

But their eyes were prevented from recognizing Him.

I do not want you to be unaware, brethren, that often I have planned to come to you (and have been prevented so far) so that I may obtain some fruit among you also, even as among the rest of the Gentiles.

The former priests, on the one hand, existed in greater numbers because they were prevented by death from continuing,