“quoniam cum ipsi permisissent ut se educerent, et cum magna sollicitudine præmisissent illos, consequebantur illos, pœnitentia acti.”
“How that having given them leave to depart, and sent them hastily away, they would repent and pursue them.”
“How that, having changed their minds to let your people go, And having speeded them eagerly on their way, They would repent themselves and pursue them.”
Care. Literally, “solicitude,” (Haydock) so that they would not allow them time to prepare victuals.