1 Samuel 11:9

And they said unto the messengers that came, Thus shall ye say unto the men of Jabesh–gilead, To morrow, by that time the sun be hot, ye shall have help. And the messengers came and shewed it to the men of Jabesh; and they were glad.

Cross-references

Joshua 11:6 also has a divine promise of victory 'tomorrow at this time', directly paralleling the 'tomorrow... deliverance' promise here.

2 Kings 7:1 uses the same phrase 'tomorrow about this time' for a prophecy of provision, similar to the deliverance promise here.