Jeremiah 12:5 in the World English Bible
“If you have run with the footmen, and they have wearied you, then how can you contend with horses? Though in a land of peace you are secure, yet how will you do in the pride of the Jordan?
Context
4 How long shall the land mourn, and the herbs of every field wither, for the wickedness of them that dwell therein? the beasts are consumed, and the birds; because they said, He shall not see our last end.
5 If thou hast run with the footmen, and they have wearied thee, then how canst thou contend with horses? and if in the land of peace, wherein thou trustedst, they wearied thee, then how wilt thou do in the swelling of Jordan?
6 For even thy brethren, and the house of thy father, even they have dealt treacherously with thee; yea, they have called a multitude after thee: believe them not, though they speak fair words unto thee.