This form of strophic construction is worthy of note, because not only do the strophe and antistrophe correspond, but the couples of strophes answer to one another; in other words, besides the vertical responsion we find a horizontal responsion (as in Jeremiah ix.), expressed sometimes by the use of identical words, sometimes by antithesis.

Euripides, Bacchæ.

Strophe. 862-870

All night in choric dances my white foot shall beat

The Bacchic rout; my head I will toss in the dewy air,

As the fawn that sports among the pleasures of green fields,

When in fear it flees the chase,

Escaping the trap, overleaping the well-wrought toils.…

Antistrophe. 882-890

Slowly, yet surely moves the power divine,