IshNum 110:25 :ܥܡܐ ܗܢܐ ܠܐ ܡܬܚܣܢܝܢ ܐܠܐ ܐܢ ܥܒܪܝܢ ܥܠ ܦܘܩܕܢܐ ܕܐܠܗܗܘܢ ܘܚܛܝܢ‏ : this nation will not be overcome unless they violate their god's command and sin
See the entire entry for ḥsn vb. to be strong