John Gill Commentary Lamentations 3:10

"He is unto me as a bear lying in wait, as a lion in secret places." — Lamentations 3:10 (ASV)

He [was] unto me [as] a bear lying in wait
For its prey, which seizes on it at once, and tears it in pieces; such were the Chaldeans to the Jews by divine permission:

[and as] a lion in secret places ;
lurking there, in order to take every opportunity and advantage, and fall upon any creature that comes that way. The same thing is signified here as before; see (Hosea 5:14) .