LSt.27:11 :ܒܥܠܕܒܒܟ ܬܚܘܒܐ ܥܫܝܢܐ ܢܬܬܕܝܢ ܠܟ ܂܂܂ ܘܪܚܡܟ ܥܫܝܢܐ ܬܚܘܒܐ ܢܬܬܕܝܢ ܠܟ‏ : you should consider your weak enemy to be strong ... while you should consider your strong friend to be weak
See the entire entry for dwn vb. to judge