When a woman may bring forth she has sorrow, because her hour has come: but when the little child may be born, she remembers her suffering no more, for the joy that a man has been born into the world.

And by faith Sarah herself received power unto the conception of seed, even past the time of age, since she considered him faithful who had promised.

Will laugh

And there shall be joy and rejoicing, and many shall rejoice at his birth.

Rejoice with them that rejoice; weep with them that weep.

General references

And there shall be joy and rejoicing, and many shall rejoice at his birth.

and thus having waited long, he received the promise.