'Spring' in the Bible

They arose early: and it happened about the spring of the day, that Samuel called to Saul on the housetop, saying, "Get up, that I may send you away." Saul arose, and they went out both of them, he and Samuel, abroad.

Now the Philistines gathered together all their armies to Aphek: and the Israelites encamped by the spring which is in Jezreel.