putrāṇāḿ duhitṝṇāḿ ca
kāle vidhy-upayāpanam
dārair varais tat-sadṛśaiḥ
kalpayantaḿ vibhūtibhiḥ
putranam -- of sons; duhitrinam -- of daughters; ca -- and; kale -- at the suitable time; vidhi -- according to religious principles; upayapanam -- getting them married; daraih -- with wives; varaih -- and with husbands; tat -- for them; sadrisaih -- compatible; kalpayantam -- so arranging; vibhutibhih -- in terms of opulences.
This translation is based on Srila Prabhupada's Krishna.
The word kale here means that Krishna arranged for His sons and daughters to be married when each of them reached the proper age.