Musar על סוטה 3:9

The Talmud (Sotah 2a) speaks about זווג ראשון, as well as זווג שני, "a first and a second matchmaking, mating." The "first one" is described as being proclaimed in Heaven, whereas the "second one" is man-made. The reference is to the commandment to be fruitful and multiply commanded to Adam and the subsequent commandment given to Noach and his descendants. The success of the second זווג, mating, marriage, which is on the basis of man's actions, depends on man's spiritual input being the first ingredient, whereas in the future, when the input from Heaven comes first, such זווגים, will be far superior to the matches being made on earth nowadays.