"Ihidāyē ( ̈ܝܚܝ ܳ ܕ ܐܶ ܝ )ʺ and "Bnay Qyama ( ܳ ܐܡܳ ܝܩ ̈ ܝܢܰ ܒ)". Features of Syrian monasticism in the 4th century